478 curated articles
We study the entanglement distance of variational quantum states for two-qubit and multi-qubit systems. These states are constructed using variational quantum circuits with $R_Y$ rotations and entangl...
This thesis, explores the quantum entanglement and evolution through both a geometric and dynamical perspective. The first part focuses on classical phase space and its central role in Hamiltonian mec...
Groove Quantum, a spin-out from the Delft University of Technology (TU Delft) has secured €16 million ($18.7M USD) in combined equity and grants to accelerate the development of its germanium-based qu...
We provide a critical assessment of a recent study applying quantum information concepts, including noisy channels and teleportation fidelity, to hyperon-antihyperon pairs produced in $e^{+}e^{-} \to ...
Multitenancy increases throughput and reduces costs in cloud-based quantum computing, but concurrent job execution introduces security risks through inter-circuit crosstalk. We characterize the struct...
Electro-optic modulators are key components for photonic quantum computing, particularly in fully cryovenic integrated platforms where low loss and compactness are critical. We present a systematic th...
Quantum machine learning integrates the strengths of quantum computing and machine learning, enabling models to learn complex features using fewer parameters than their classical counterparts. Due to ...
Despite rapid recent advances in quantum machine learning, the field is in many ways stuck. Existing approaches can exhibit serious limitations, and we still lack learning frameworks that are simple, ...
We study the generation of metrologically useful entanglement in a three-level (spin-1) system naturally realized in arrays of dipole-interacting Rydberg atoms confined in optical tweezers. In the spi...
Levitation of microscopic objects in vacuum combines exceptional environmental isolation with precise control of their dynamics, pushing the limits of sensing and macroscopic quantum physics. In parti...
Machine learning models can learn from data samples to carry out various tasks efficiently. When data samples are adversarially manipulated, such as by insertion of carefully crafted noise, it can cau...
Quantum bits (qubits) are the fundamental building blocks of quantum information processing. A novel qubit platform invented at the U.S. Department of Energy's (DOE) Argonne National Laboratory exhibi...
The Quantum Lattice Boltzmann Method (QLBM) has emerged as one of the most promising quantum computing approaches for the numerical simulation of problems in computational fluid dynamics (CFD). The dy...
Quantum key distribution (QKD) theoretically offers information-theoretic security. The prevailing approach is the prepare-and-measure BB84 protocol, which implements QKD using conventional laser rath...
Planar germanium heterostructures hosting hole-spin qubits are among the leading platforms for scalable semiconductor-based quantum computing. Yet, device performance is hindered by significant quantu...
In recent years, continuous-variable quantum key distribution (CV-QKD) has become a promising paradigm for enabling secure communication among multiple end users sharing the same telecommunication bac...
Insider Brief PRESS RELEASE — Quantum bits (qubits) are the fundamental building blocks of quantum information processing. A novel qubit platform invented at the U.S. Department of Energy’s (DOE) Argo...
Practical applicability of quantum optimisation on near term devices is constrained by limited qubit counts and hardware noise, which restricts the scalability of quantum optimisation algorithms for c...
We propose a method for constructing multi-qubit entangled quantum states representing weighted tripartite graphs. An expression for the entanglement distance for multi-qubit states corresponding to a...
Accurately characterizing multipartite entangled states is a critical challenge in quantum information processing. In this work, we focus on applying compressed sensing techniques to efficiently estim...
Counterintuitive quantum property turns out to be the hidden backbone of fault-tolerant quantum computers The post The weirdness of quantum contextuality is not a bug – it’s a feature appeared first o...
Insider Brief PRESS RELEASE — Lawrence Livermore National Laboratory (LLNL) has been selected to lead a project that will receive $4.1 million in funding from the U.S. Department of Energy Advanced Re...
Executive Summary France’s quantum ecosystem continues to advance across policy, business, and research, with coordinated efforts to strengthen technological sovereignty, expand global partnerships, a...
Insider Brief IBM’s CEO expects early signs of quantum advantage to emerge this year, signaling growing confidence that quantum systems are beginning to outperform classical computers in select tasks....
Insider Brief PRESS RELEASE — Paragraf, a leader in graphene electronics and fabrication, and Archer Materials Ltd., a technology company specializing in advanced materials and quantum‑enabling device...
A double-transmon coupler (DTC) enables a fast, high-fidelity CZ gate between two highly detuned, fixed-frequency transmon qubits. Moreover, a recently proposed capacitively shunted DTC (CSDTC) realiz...
In multi-core quantum computing architectures, waveguide-mediated interconnects are essential for facilitating fast, high-fidelity quantum state transfer between qubits located in different chips. How...
Bosonic quantum error correction encodes a logical qubit in an oscillator, avoiding the hardware overhead of large qubit arrays. Among such encodings, Gottesman-Kitaev-Preskill (GKP) states are paticu...
Insider Brief PRESS RELEASES — A delegation from VTT Technical Research Centre of Finland is at the Quantum Australia Conference to discuss potential areas of collaboration with Australia’s national s...
Insider Brief PRESS RELEASE — Qubit Pharmaceuticals, a deeptech company specializing in the discovery of new drug candidates, today announced a strategic research collaboration with the Centre for Qua...
Insider Brief PRESS RELEASE — Groove Quantum today announced it has raised €16 million in combined funding and demonstrated an 18-qubit semiconductor spin-qubit processor, the largest of its kind ever...
Complex quantum systems are often multiscale in nature with strong interactions between different scales. We present a novel idea: iteratively suppressing, rather than tracing out, the fast, high-ener...
Insider Brief Quantum computing has moved from academic curiosity to active commercial development, and the reading list has grown with it. Whether approaching the field for the first time or looking ...
Continuous-variable quantum key distribution (CVQKD) using passive state preparation (PSP) offers low-cost, high-rate secure communication. However, the existing PSP-CVQKD scheme with a transmitted lo...
PsiQuantum has announced the appointment of Lip-Bu Tan to its Board of Directors. Tan, a titan of the semiconductor industry and current CEO of Intel Corporation, brings decades of experience in build...
Orbital energy splittings are important quantum dot parameters for the operation of hole spin qubits. They are known to depend on the lateral confinement of the quantum dots. However, when changing to...
We introduce a quantum algorithm for simulating the dynamics of electrical circuits consisting of resistors, inductors and capacitors (aka RLC circuits) along with power sources. Given oracle access t...
The pure-loss channel is a fundamental model for describing noise in bosonic quantum platforms. It is characterised by a single parameter, the transmissivity, which quantifies the fraction of the inpu...
We report the largest trapped-ion hardware demonstration of lattice protein-folding optimization to date, using bias-field digitized counterdiabatic quantum optimization (BF-DCQO) on a fully connected...
We propose a method to evaluate general thermodynamic fluctuations in open quantum systems, based on performing a two-point measurement scheme on the system using dynamics-dependent thermodynamic obse...
We present a quantum feature-selection framework based on a higher-order unconstrained binary optimization (HUBO) formulation that explicitly incorporates multivariate dependencies beyond standard qua...
Establishing the precise computational boundary between classically tractable fermionic systems and those capable of genuine quantum advantage is a central challenge in quantum simulation. While injec...
Finite local Hilbert-space truncations arise naturally in quantum simulations of lattice field theories and motivate qudit encodings, but their fault-tolerant advantage over qubit encodings remains un...
Long-range quantum entanglement is essential for building large-scale quantum networks and unconditionally secure cryptographic systems based on quantum key distribution (QKD). While photonic integrat...
Hybrid quantum--classical workflows often execute large ensembles of circuits that differ syntactically but implement identical operations, leading to substantial redundant computation. To address thi...
Insider Brief Maryland is backing its bid to become a hub for quantum technology with targeted funding embedded in its Fiscal Year 2027 budget, according to a news release from the state. Policymakers...
We investigate variational quantum classifiers (VQCs) for land-cover classification from multispectral satellite imagery, adopting a feature-map perspective in which the quantum circuit defines a nonl...
Compiling time-evolution operators of the form $U(t)=e^{-iHt}$ into hardware-native gate sequences is a central bottleneck for digital quantum simulation on noisy intermediate-scale quantum (NISQ) dev...
Quantum state discrimination is a fundamental information processing task that serves as a building block for numerous applications and provides implications at the foundational level. In this work, w...
We present a method for generating a laser beam with flat intensity and phase profiles in the focal region where the beam interacts with neutral $^{87}$Rb atoms in an array of optical dipole traps. We...
Insider Brief A new study proposes that DNA functions as a quantum computing system capable of sensing cosmic radiation and that this sensitivity may help explain how living cells track biological tim...
Two qubits strongly coupled to a common bosonic reservoir can become entangled with each other, despite having no direct interaction. In equilibrium, such coupling-induced coherences can be described ...
Insider Brief U.S. House Committee on Science, Space, and Technology is set to review legislation that would extend and update the U.S. government’s quantum technology strategy, marking a procedural s...
Recent advances in quantum computing have enabled the development of quantum processors with hundreds of qubits. However, noise continues to limit the amount of useful information that can be extracte...
From The Conversation By Gary Skuse, Professor of Bioinformatics, Rochester Institute of Technology and Sherry Dadgar, Clinical Assistant Professor of Medicine, George Washington University Decades af...
Insider Brief SAS reports that interest in quantum AI remains high, but uncertainty about real-world applications has overtaken cost as the top barrier to adoption, even as the company positions new t...
From the perspective of quantum information science, we investigate tree-level Bhabha scattering between an incident electron $A$ and a positron B, where $B$ is initially entangled with a spectator el...
Insider Brief PRESS RELEASE — Fermi National Accelerator Laboratory (Fermilab) is strengthening the next generation of scientists and engineers through its Saturday Morning Quantum (SMQ*) program, gra...
Monarch Quantum and Oratomic have entered a strategic partnership to accelerate the development of utility-scale, fault-tolerant quantum computers. The collaboration integrates Monarch’s specialized p...
Continuous-variable quantum systems are promising candidates for quantum computing and quantum information processing. It is widely known that quadrature measurements on Gaussian continuous-variable s...
Quantum computing calibration depends on interpreting experimental data, and calibration plots provide the most universal human-readable representation for this task, yet no systematic evaluation exis...
Distributed Quantum Computing (DQC) and Quantum Error Correction (QEC) rely on dynamic circuits that include Mid-Circuit Measurements (MCMs) and classical feedback. These operations present a major bo...
The decomposition of complex quantum operations into experimentally feasible gate sets has been a central challenge since the early development of quantum computing. The multi-controlled Toffoli (MCT)...
As emerging quantum architectures evolve into heterogeneous networks combining different physical substrates, such as qubits for logic and higher-dimensional qudits for robust communication, the tradi...
The Quantum Approximate Optimization Algorithm (QAOA) follows a single, fixed evolution path, overlooking the potential computational advantage of coherently superposing multiple trajectories. Here we...
Insider Brief PRESS RELEASE — Infleqtion (NYSE: INFQ), a global leader in quantum computing and quantum sensing powered by neutral-atom technology, announced that the U.S. Navy has awarded the company...
We explore what the integrated use of quantum spatial distribution (QSD), or more specifically, superposition of both spin and position states of particles, and gauge symmetry (GS) within stabilizer f...
Insider Brief A series of announcements out of South Florida last week leave little doubt that the state’s quantum push has moved from positioning to delivery. The headline came on Friday at 2026 eMer...
Insider Brief PRESS RELEASE — Monarch Quantum, a U.S.-based quantum photonics company developing integrated photonics systems for scalable quantum computing, and Oratomic, a U.S.-based neutral atom co...
We find the ground-state energy of the Ising model using the Cascaded Variational Quantum Eigensolver (CVQE) algorithm with the Guided-Sampling Ansatz (GSA) using up to 63 qubits on a quantum computer...
We compare four polynomial-resource measurement strategies, (I) $Z$-basis-only, (II) nearest-neighbor $ZZ$ (NN), (III) multi-basis ($Z$, $X$, $Y$), and (IV) classical shadows, for classifying three qu...
We propose a general method to fully characterize a classical stochastic noise process causing qubit dephasing through repetitive Ramsey interferometry measurements (RIMs) on the qubit. Compared to fi...
The security of quantum key distribution (QKD) systems relies on the physical integrity of their components. While laser-damage attacks (LDAs) using high-power continuous-wave (cw) lasers have been we...
In this paper, we resolve an open question in the field of optimization algorithms for training parametrized quantum circuits: Does the popular Rotosolve algorithm converge? Until now, interpolation-b...
Artificial intelligent language-model based coding agents have significantly changed the way we interact with computers in our day-to-day, as it is common to use them to create, improve, and run progr...
We study algorithms inspired by quantum annealing that are suited for the NISQ era. First, we analyze approximate quantum annealing (AQA), which employs a discretized annealing ansatz in which the tim...
Insider Brief PRESS RELEASE — Haiqu, a leading developer of quantum middleware, today announced the publication of joint research with HSBC in Physical Review Research demonstrating an efficient appro...
Bent Boolean functions extremal objects that maximally resist affine approximation are notoriously hard to construct for large numbers of variables. We propose a hybrid quantum-classical genetic algor...
Image classification is a core task of intelligent sensing, conventionally follows a sequential imaging then processing pipeline. However, redundant high-dimensional image reconstruction is inherently...
A K-mirror rotates the wavefront of an incident optical field. However, the rotation always introduces polarization changes in the transmitted field. This is a serious concern for applications ranging...
Minor embedding is a required compilation step for quantum annealing, mapping logical problem graphs onto sparse hardware topologies. Despite its central role in determining solution quality, no stand...
Insider Brief The timeline for quantum computers breaking modern encryption has compressed significantly. Research published between May 2025 and March 2026 shows that breaking widely used cryptograph...
Insider Brief PRESS RELEASE — As quantum computers advance, they are expected to be able to break tried-and-true security schemes that currently keep most sensitive data secure from attackers. Scienti...
We investigate the role of continuous measurement and postselection in the dynamics and entanglement of a transmon-cavity-transmon coupled system. In the dispersive regime, characterized by a large de...
Scaling superconducting quantum processors is increasingly constrained by the wiring, heat load, and calibration overhead associated with delivering high-resolution analog signals from room temperatur...
Insider Brief Ground State Ventures, the venture firm formerly known as QDNL Participations, said it raised $88 million for its early-stage quantum fund — well above its $70 million target — as it exp...
Discrete time crystals are non-equilibrium phases of matter in periodically driven systems, characterized by robust subharmonic oscillations and broken discrete time-translation symmetry. Their long-l...
IonQ (NYSE: IONQ) and Florida LambdaRail (FLR) have announced a Master Service Agreement to deploy a quantum-safe communication network across the state of Florida. Announced at the 2026 eMerge Americ...
Combining recent advances in superconducting quantum hardware, we explore quantum correlations in a previously inaccessible regime by observing \emph{simultaneously} high-dimensional and many-body Bel...
Semiconductor spin qubits are a promising platform for large-scale quantum computing, but have yet to take full advantage of the broad class of quantum low-density parity check (QLDPC) codes, which pr...
The emergence of classicality is fundamentally driven by the interaction between a quantum system and its environment. Foundational open-system approaches, notably the Caldeira-Leggett model, successf...
Gatemon qubits are based on a superconductor-quantum dot-superconductor (S-QD-S) junction which enables in situ electrostatic tuning via a gate electrode. For a single-channel QD this structure gives ...
Quantum computers could solve problems beyond the reach of classical devices, but this potential depends on quantum error correction (QEC) to protect fragile quantum states from noise. A central chall...
At the core of the quantum Internet lie quantum repeaters that enable remote end-to-end entanglement generation. Fundamentally, the entanglement generation rate and fidelity of quantum repeaters const...
IQM Quantum Computers has reached an agreement with TOYO Corporation for the sale and deployment of an IQM Radiance 20-qubit system. This transaction marks the first instance of an enterprise-purchase...
The paper presents a scheme to detect entanglement arising from the quantum nature of gravity between a spin qubit and photons, using Stokes parameters. One of the crucial tests of the general theory ...
We analyze device-dependent correlation sets generated by fixed local dichotomic measurements for two-qubit systems in the $(2,m,2)$ Bell scenario. We consider three fundamental state spaces for the c...
Noise in contemporary quantum hardware is highly non-uniform across qubits and couplers, giving rise to localized low-noise "islands" within otherwise noisy device topologies. As quantum workloads sca...
Insider Brief PRESS RELEASE — IonQ (NYSE: IONQ), the world’s leading quantum platform company, and Florida LambdaRail (FLR), Florida’s existing statewide research and education fiber optic network, an...
Phase retrievability of a quantum channel asks whether pure states can be reconstructed from suitable measurements. In this paper, we study this problem from three complementary viewpoints: quantum in...
Insider Brief PRESS RELEASE — IQM Quantum Computers, the global leader in superconducting quantum computers, today announced the purchase of its full-stack 20-qubit quantum computer by TOYO Corporatio...
Insider Brief PRESS RELEASE — Quantum Art, a developer of full-stack trapped-ion quantum computers, today announced that it has extended its recently announced Series A financing to $140 million led b...
In realistic quantum information processing tasks, quantum states are inevitably affected by environmental noise, leading to decoherence and degradation of useful quantum resources. The coherence frac...
Configuring variational quantum algorithms for combinatorial optimization remains a difficult, expert-driven process requiring coordinated choices over solver family, ansatz, objective, and optimizer....
Insider Brief A new study warns that the exotic raw materials powering quantum computers, sensors and secure communications are dangerously concentrated in the hands of a few countries — mostly China ...
We propose a gate-based quantum algorithm for the prediction step of Bayesian state estimation based on the Fokker-Planck equation on a discretized position-velocity state space. The probability densi...
Insider Brief Most encryption protecting online banking, government communications, medical records, and corporate infrastructure relies on a mathematical assumption – certain problems are too computa...
We study single-copy stabilizer learning, the problem of identifying a stabilizer group of dimension $n-t$ from an $n$-qubit quantum state $ρ$. We obtain two complementary results. First, in the avera...
Insider Brief PRESS RELEASE — QuantumCore Inc. (CSE: QNCR) (“QuantumCore” or the “Company”) today announced a deepened collaboration with the Institute for Quantum Computing (IQC) at the University of...
Scalable quantum computing is fundamentally bottlenecked not by qubit count or fabrication yield, but by a rigid temporal mismatch: macroscopic classical coordination latency ($τ_c$) inevitably grows ...
Quantinuum LLC, a quantum hardware company majority owned by Honeywell, has filed a confidential S-1 form on February 17, 2026 with the U.S. Security and Exchange Commission (SEC) for a proposed Initi...
Insider Brief A quantum computer powerful enough to break the cryptography that secures Bitcoin and Ethereum will eventually be built, and the blockchain industry is running out of time to do somethin...
Yuval Boger interviews Tom Darras, CEO and co-founder of Welinq. They discuss how quantum networking uses shared entanglement to interconnect quantum processors, enabling modular scale-out clusters an...
Q-CTRL and IonQ have announced the native integration of Q-CTRL’s Fire Opal software into the IonQ Quantum Cloud. This partnership embeds the Fire Opal Optimization Solver directly into the workflow f...
The National Quantum Algorithm Center (NQAC) at the Illinois Quantum and Microelectronics Park (IQMP) has announced five awards under its Grand Challenges program. The initiative is designed to suppor...
Symmetry-resolved spectroscopies, such as angle-resolved photoemission spectroscopy and polarization-resolved Raman, are central for quantum material characterization, yet remain challenging at nanosc...
We describe a numerical many-body technique that is based on both tensor networks and quantum Monte Carlo. The variational ansatz is a tensor network that can harvest volume-law entanglement. It is co...
Near-term hardware is constrained by high error rates, small qubit counts, and relatively low output fidelity, making the execution of large, high performance quantum circuits difficult. Circuit parti...
Insider Brief PRESS RELEASE — Today, the National Quantum Algorithm Center (NQAC) at the Illinois Quantum and Microelectronics Park (IQMP) announced five awards in the Grand Challenges program, an ini...
Proposed experiments for gravitationally induced entanglement (GIE) typically suppress direct electromagnetic interactions between two massive particles by inserting a conducting Faraday shield. For s...
Insider Brief PRESS RELEASE — Project Eleven today awarded the Q-Day Prize, a one Bitcoin bounty, to Giancarlo Lelli for breaking a 15-bit elliptic curve key on a publicly accessible quantum computer....
We study how the color code under decoherence gives rise to an intrinsic mixed-state topological order (imTO), which has no counterpart in pure ground states of local gapped Hamiltonians. For decohere...
By Mohamed Abdel-Kareem Quantum hardware is transitioning from academic fabrication to industrial manufacturing. Semiconductor standardized, and therefore highly optimized, processes enable consistenc...
Future quantum architectures are expected to be modular, with quantum processors connecting multiple quantum processing units (QPUs) via photonic interconnects. In topological quantum error correction...
Quantum computing may speed up numerical problems involving large matrices that are demanding for classical computers, and active research on this possibility is ongoing. In this work, we propose quan...
Entanglement has been proposed as a means to improve the sensitivity of sensing weak signals. While the degree of this quantum advantage is well understood in noiseless settings, the situation is more...
Insider Brief Cisco is testing a prototype device designed to connect different quantum machines into a single network, a step that could help the technology scale beyond today’s hardware limits. The ...
Insider Brief While everyone is scrolling through the AI hype, a deeper revolution is already underway. There is a line from Lewis Strauss that has always stuck: “Amateurs seek the sun. Get eaten. Pow...
Hybrid quantum optimization for vehicle routing faces a practical bottleneck: direct QUBO encodings of CVRP quickly exceed near-term qubit and gate budgets, while quantum evaluations are expensive, no...
Semiconductor spin qubits are a promising candidate for the building blocks of next-generation quantum computers due to their high potential for integration and compatibility with existing semiconduct...
Guest post by Sean Harpur, CEO of Moth When people talk about the race to build quantum computers, the conversation usually focuses on hardware. How many qubits a machine has. How stable those qubits ...
Measurement-only circuits provide a minimal setting in which repeated local projections can either generate or suppress many-body entanglement, giving rise to measurement-induced phase transitions and...
We study random entanglement percolation in heterogeneous quantum networks, where the singlet-conversion probabilities (SCPs) of the edges are drawn from a probability distribution rather than being f...
Quantum resources such as entanglement form the backbone of quantum technologies and their efficient generation is a central objective of modern quantum platforms. Independently, quantum batteries hav...
Peaked quantum circuits, whose output distribution is sharply concentrated on a single bitstring, have emerged as a promising candidate for verifiable quantum advantage, as the correctness of the quan...
Quantum networks are a keystone of the quantum internet. However, existing implementations remain largely confined to static point-to-point links due to the absence of a switching paradigm capable of ...
We investigate the limits of quantum error correction (QEC) in neutral-atom processors approaching high-fidelity gates and fast cycle times. We show that shorter QEC cycles amplify platform-specific e...
Execution of quantum algorithms on large-scale quantum computers will require extremely low logical error rates, which necessitates the development of scalable decoding architectures. Local decoders a...
Quantum computers, devices that process information leveraging quantum mechanical effects, could tackle some tasks that are difficult or impossible to solve using classical computers. These systems re...
Bosonic quantum error correction enables hardware-efficient protection of quantum information by encoding logical qubits in harmonic oscillators. Bosonic grid states, such as Gottesman-Kitaev-Preskill...
This thesis is concerned with rigorous security analyses of practical Quantum Key Distribution (QKD) protocols, using a variety of modern proof techniques. The main results are as follows. First, we e...
The partial oracles framework is a quantum search algorithm that has the potential to exceed the quadratic speedup of Grover's algorithm, up to a theoretical maximum of an exponential speedup. Until n...
Insider Brief PRESS RELEASE — Zapata Quantum (OTC: ZPTA) (“Zapata”, “Zapata Quantum” or the “Company”), a pioneer in quantum computing application and algorithm development, today announced the comple...
High-quality photonic Bell state measurements (BSMs) enable scalable universal quantum computing and long distance quantum communication. However, when implemented with linear optics, BSMs are fundame...
In this work, we systematically investigate the quantum-information diagnostics of cosmological perturbations with a nontrivial sound speed, utilizing a normalized open two-mode squeezed-state framewo...
Quantum technologies in the terahertz (THz) require a coherent interface between addressable qubits and THz quantum channels -- a capacity that so far, remains largely underdeveloped. Here, we propose...
Modular quantum computing architectures require error correction schemes that remain effective in the presence of noisy inter-processor operations. As such, minimizing the number of such operations on...
We describe the design, implementation, and nine-month operational experience of the software management stack for Lagrange, an IQM Spark five-qubit superconducting quantum computer jointly acquired b...
The creation of high-quality cluster states in superconducting microwave circuits is a relevant ingredient in continuous-variable quantum computing. Although large-scale cluster states have been estab...
Insider Brief PRESS RELEASE — Quantum Computing Inc. (“QCi” or the “Company”) (NASDAQ: QUBT) an innovative, quantum optics and integrated photonics technology company, today announced that NeuraWave, ...
Insider Brief PRESS RELEASE — Classiq, the leading quantum computing software company, today announced a significant acceleration for quantum software development: a new AI agentic layer that enables ...
We present a new software package for efficient quantum circuit generation, designed to achieve optimal runtime performance. Despite being in an early stage of development, our implementation demonstr...
Insider Brief PRESS RELEASE — Cisco (NASDAQ: CSCO) today announced the Cisco Universal Quantum Switch, a critical milestone in quantum networking that addresses one of the most fundamental barriers to...
Insider Brief PRESS RELEASE — Q-CTRL, the global leader in quantum infrastructure software, and IonQ, the world’s leading quantum platform company, today announced the native integration of Q-CTRL’s F...
High-fidelity control of superconducting qubits requires carefully shaped microwave pulses that account for multiple error channels. In this work, we present a pedagogical introduction to pulse-shapin...
Photonic quantum computing provides a promising route toward quantum computation by naturally supporting the measurement-based quantum computation (MBQC) model. In MBQC, programs are executed through ...
Fault-tolerant quantum computing increasingly demands rigorous, circuit-level evaluation of diverse quantum error correction (QEC) protocols and efficient prototyping of new ones. Such evaluation requ...
We investigate the reduced dynamics of two identical superconducting qubits capacitively coupled through a finite-length transmission line. Starting from circuit quantization, we derive a circuit Hami...
Insider Brief A team of researchers at IonQ has published a technical blueprint for a fault-tolerant quantum computer built on trapped ions, describing an architecture they contend could execute milli...
High-precision optical phase stabilization in quantum networks is fundamentally constrained by the strict photon-flux and duty-cycle limits required to avoid disturbing fragile quantum states. This ch...
We investigate optimized vertical ion-shuttling protocols for trapped-ion applications across a range of ion-trap experiments, including three-dimensional gradient-measurement sensors, on-chip ion flu...
Magnetic quantum sensors based on trapped ions utilize properties of quantum mechanics which have optimized precision and beat current limits in sensor technology. Trapped ions are highly sensitive in...
We present pygridsynth, an open-source Python library for ancilla-free approximate Clifford+$T$ synthesis that runs in $O(\log(1/ε))$ for precision $ε$. For $n=1, 2$ qubits, the library builds upon es...
As quantum hardware scales toward fault tolerant operation, the demand for correct quantum error correction (QEC) circuits far outpaces manual design capacity. AI agents offer a promising path to auto...
Insider Brief PRESS RELEASE — Today QC Design announced the launch of Gauge, an extension of its Plaquette platform that determines the optimal fault-tolerance threshold for a given quantum error corr...
QC Design has announced the launch of Gauge, a technical extension of its Plaquette software platform designed to determine the optimal fault-tolerance thresholds for quantum error correction (QEC) co...
It was a head-spinning discovery. In 2018, researchers in Japan claimed to find concrete evidence of an elusive particle, a Majorana fermion, in a quantum spin liquid called ruthenium trichloride. Maj...
Recent research has introduced two distinct architectural blueprints for fault-tolerant quantum computing (FTQC) utilizing Quantum Low-Density Parity-Check (QLDPC) codes. A team from IonQ proposed the...
Meta Description: IonQ sets a new industry standard with a full-stack technical report detailing the path to 10,000+ qubits and scalable, error-corrected quantum systems.
We develop a path integral representation for the dynamics of quantum systems with a finite-dimensional Hilbert space, formulated entirely within a discrete phase space. Starting from the discrete Wig...
Insider Brief Honeywell said its quantum computing subsidiary Quantinuum has confidentially submitted a draft registration statement to U.S. regulators, formally advancing a long-anticipated plan to t...
Sampling problems are promising candidates for demonstrating quantum advantage, and one approach known as quantum-enhanced Markov chain Monte Carlo [Layden, D. et al., Nature 619, 282-287 (2023)] uses...
Dissipatively stabilized cat qubits are promising for fault-tolerant quantum information processing, yet their non-Hermitian (NH) spectral topology remains largely unexplored. We uncover rich Liouvill...
Optimization problems become fundamentally challenging as the number of variables increases. Because the volume of the search space grows exponentially, classical algorithms frequently fail to locate ...
Insider Brief A new study finds a way to make early fault-tolerant quantum computers run up to three times faster without adding more physical qubits, and concludes that a leading design strategy used...
Accurate state-of-health (SOH) estimation for lithium-ion batteries remains a challenging problem due to complex electrochemical degradation mechanisms and long-range temporal dependencies. In this wo...
We introduce a quantum analogue of a classical synchronizing automaton. In classical case the state of a system evolves according to a set of rules forming an alphabet, and sequences of these rules, c...
Insider Brief PRESS RELEASE — In a first-of-its-kind collaboration, Pennsylvania’s seven research intensive universities* have joined forces with the Pittsburgh Supercomputing Center, the Commonwealth...
Mark Saunders explains why intellectual property is crucial for quantum technology The post Why patents are so vital for the quantum economy appeared first on Physics World .
Insider Brief PRESS RELEASE — Few concepts in physics are as familiar, yet as enigmatic, as time. In Einstein’s theory of relativity, time is not absolute: its passage depends on motion and gravity. B...
Insider Brief PRESS RELEASE — Quantum technology startup QMatter has raised $1.2M in pre-seed funding, led by 55 North, the world’s largest pure-play quantum fund, with participation from XTX Ventures...
Insider Brief As nearly all the latest headlines suggest, quantum computing is increasingly moving out of the lab and academia and into business and industry. Forward-thinking companies and policymake...
Insider Brief PRESS RELEASE — Infleqtion (NYSE: INFQ), a global leader in quantum computing and quantum sensing powered by neutral-atom technology, announced it has secured a $2 million contract from ...
We adopt a two-dimensional tensor-network (TN) ansatz to simulate variational quantum algorithms on two-dimensional qubit architectures, demonstrating its capability to accurately simulate deep circui...
Quantum coherence is an important quantum resource which plays a pivotal role in the field of quantum information. Based on metric adjusted skew information, we define a measure of quantum uncertainty...
Constrained combinatorial optimization problems are frequently reformulated as quadratic unconstrained binary optimization (QUBO) models in order to leverage emerging quantum optimization algorithms s...
Los Angeles-based startup Quantum Elements has announced a research collaboration with Rigetti Computing to evaluate the use of AI-native digital twin simulation for superconducting quantum hardware. ...
Infleqtion has secured a $2 million contract from the Defense Advanced Research Projects Agency (DARPA) to support the Heterogeneous Architectures for Quantum (HARQ) program. The 24-month project focu...
Recent advancements in neutral atom platforms have enabled exploration of early fault-tolerant (FT) architectures for applications with quantum advantage, such as quantum dynamics simulations. An effi...
In this paper, we give a mathematical proof that bounds the number of CNOT gates required to synthesize an $n$ qubit phase polynomial with $g$ terms to be at least $O(\frac{gn}{\max (\log g, 1)})$ and...
Quantum Signal Processing (QSP) and Quantum Singular Value Transformation (QSVT) provide an efficient framework for implementing polynomials of block-encoded matrices, and thus offer a systematic appr...
The use of noise-robust qubit encodings provides a way of extending the lifetime of quantum information at the hardware level. In this work, we introduce the spin Kerr-cat encoding, which leverages a ...
Insider Brief PRESS RELEASE — PINQ² (Digital and Quantum Innovation Platform) today announced it has become the exclusive Canadian distributor of Pasqal’s neutral atom quantum computing technology. Th...
Insider Brief Quantum computers are unlikely to weaken today’s widely used symmetric encryption, according to a new analysis that challenges a common assumption about quantum threats and suggests secu...
Insider Brief PRESS RELEASE — Pasqal, a leader in neutral‑atom quantum computing, hosted its flagship event Pasqal Thoughts 2026 on World Quantum Day at Le Cercle d’Aumale in Paris. The half‑day event...
Standard quantum mechanics employs complex Hilbert spaces, but whether complex numbers are fundamental or merely convenient has long been debated. For decades, real-valued equivalents were considered ...
We propose a fault-tolerant quantum computer architecture for trapped-ion devices, which we call the walking cat architecture. Our blueprint includes a compiler, a detailed description of all the quan...
Insider Brief PRESS RELEASE — NPL, the UK’s National Metrology Institute (NMI), plays a central role in providing accurate and trusted measurement across emerging technology. Within its Institute for ...
Guest Post by Sean Harpur, CEO of Moth When people talk about the race to build quantum computers, the conversation usually focuses on hardware. How many qubits a machine has. How stable those qubits ...
We introduce and empirically validate Landscape Span Compression (LSC), a device-agnostic metric for quantifying how hardware noise distorts the variational energy landscape of the Quantum Approximate...
Insider Brief PRESS RELEASE — Quantum Elements, a quantum software start-up based in Los Angeles, today announced it is exploring advanced digital-twin simulation techniques to eventually achieve prac...
Insider Brief A new study reports quantum error-correcting codes with encoding rates above 50% that can run efficiently on neutral-atom hardware while achieving extremely low logical error rates—an ad...
Magnetic domain walls have long been pursued as carriers of classical information for storage and processing. With the ability to create, control, and probe domain walls at the nanoscale, they are rec...
As quantum computing matures into a practical paradigm, the need for secure and private quantum computation on untrusted hardware becomes increasingly urgent. While classical fully homomorphic encrypt...
Insider Brief Quantum technology is advancing rapidly, but solving one fundamental challenge could speed up development even further: getting systems from different modalities to communicate effective...
Insider Brief PRESS RELEASE — Orange Quantum Systems (OrangeQS), an industry leader in quantum chip testing has announced the second closing of its seed round at €15 million. This follows the first cl...
Researchers stretch the limits of how far artificial intelligence can contribute to scientific discovery The post Meta-design: language models generate novel quantum experiments appeared first on Phys...
Hybrid continuous-variable--discrete-variable (CV--DV) architectures process quantum information in bosonic modes and qubits, but noise limits their performance. To reduce the noise, existing DV error...
Wave--particle duality demonstrates the peculiar nature of quantum mechanics. In which-way experiments, depending on the measurement scheme, a particle exhibits either wave-like or particle-like prope...
The fate of non-trivial many-body states subject to decoherence is of both fundamental and practical interest. Here, we demonstrate a new analytic technique that allows for an exact treatment of dynam...
Standard quantum error correction (QEC) models typically assume discrete, Markovian noise, obscuring the continuous quantum nature of physical environments. In this manuscript, we investigate the fund...
Quantum entanglement in systems of identical particles is often obscured by the interplay between exchange-induced correlations and the operational framework used to define entanglement. To study the ...
A research collaboration between QuEra Computing, Harvard University, and MIT has reported a quantum error correction (QEC) result demonstrating a physical-to-logical qubit ratio of approximately 2:1....
Nature Physics, Published online: 21 April 2026; doi:10.1038/s41567-026-03254-y Entanglement between particles offers insights into quantum behaviour, but methods for studying it in free-electron syst...
Superconducting qubits—bits of quantum information—have been widely considered a promising technology for moving quantum computing forward. But there's still much work to be done before they can be br...
We simulate a long-range extended Ising model in one dimension using a hybrid quantum algorithm, namely Variational Quantum Eigensolver (VQE). In this quantum simulation, we investigate how quantum re...
Fiber-integrated micro-optical elements promise a scalable approach to photon collection and beam shaping for quantum information processing. Here, we demonstrate single-step fabrication of micro-sphe...
Integrated photonics is widely regarded as a key enabler for scalable quantum key distribution (QKD), offering compactness, stability, and compatibility with semiconductor fabrication. Despite rapid a...
Quantum computing is a new approach to computation that utilizes superposition, entanglement, interference, and tunneling to solve problems too complex for classical computers. This paper discusses th...
We propose a broadband Purcell-protection scheme based on a single shared filter integrated directly into the feedline, enabling simultaneous protection of multiple qubits in a compact architecture wi...
Insider Brief PRESS RELEASE — Kvantify and Equal1 are pleased to announce the formation of a strategic alliance aimed at delivering integrated, high-performance quantum computing solutions. By combini...
The limited number of qubits is a major bottleneck in Quantum Approximate Optimization Algorithm (QAOA) for large-scale combinatorial optimization in the Noisy Intermediate-Scale Quantum (NISQ) era. T...
Superconducting qubits, realized by incorporating Josephson junctions into superconducting circuits, behave as artificial atoms with anharmonic energy spectra and can be precisely controlled and measu...
Multiphoton entangled states are pivotal resources for implementing optical quantum information protocols. Recently, energy-time-entangled triphotons have been observed in hot atomic ensembles. Howeve...
Insider Brief The majority of the readers encountering quantum computing through headlines come away with one of two impressions. Either a machine somewhere is about to break every password on the int...
Microwave photon detection is a key technology for low-temperature superconducting electronics and quantum information processing. A promising possibility is to use switching processes in parametric s...
We derive a tight and saturable monogamy relation for three-qubit pure states that bounds the sum of concurrence and concurrence of assistance by the entanglement with an external qubit. The bound dec...
We establish a quantitative relation between local spin polarization and quantum entanglement in two-qubit systems by deriving an upper bound on the concurrence at fixed local polarization, showing th...
The long-range transmission of quantum information relies on multiple interfaces between photons, acting as flying qubits, and localized memories, serving as repeaters, to mitigate transmission losses...
Although Google Quantum AI first disclosed their Willow chip in December 2024, access to it outside of Google has been very limited. But now, Google has announced it will provide a select group of app...
Hardware topology of the IQM Sirius QPU (STAR 24) In an experimental study from researchers across India, Singapore, and the USA, IQM’s Sirius 24-qubit superconducting processor was utilized to demons...
SDT Inc., a South Korean company specializing in quantum technology, has signed a resource utilization agreement with global quantum computing company IonQ. The agreement integrates IonQ’s trapped-ion...
Insider Brief Germany committed approximately €2 billion to quantum technology through its 2020 economic stimulus package, with a further ~€3 billion committed through its 2023 Action Plan on Quantum ...
Insider Brief Brazilian physicists have shown that the notoriously finicky quantum states needed for fault-tolerant quantum computing become dramatically more stable and easier to find as the chain of...
Insider Brief The most unusual price action in quantum computing this week didn’t happen on the Nasdaq. It happened on the KOSDAQ. On April 14, NVIDIA launched Ising, an open-source family of AI model...
Erasure qubits are a promising platform for implementing hardware-efficient quantum error correction. Realizing the error-correction advantages of this encoding requires frequent mid-circuit erasure c...
Aziz and Howl argued that a classical gravitational field can generate quantum entanglement through a quantum-field-theoretic channel mediated by virtual matter propagation. However, their claimed cha...
Engineering large-scale quantum computers which simultaneously provide high-fidelity quantum operations, low memory errors, low crosstalk, and reasonable resource usage remains an outstanding challeng...
Quantum key distribution (QKD) has reached a commercially viable stage, with several companies offering hardware systems designed for operational deployment. Evaluating the performance of commercial Q...
Angular correlations in Higgs decays to electroweak gauge bosons, $h \to ZZ^*, WW^*$, provide a powerful probe of both new physics effects and quantum information observables. We present a systematic ...
Commercially-relevant quantum computers will require large numbers of high-performing qubits that can be manufactured, integrated, and controlled at scale. Silicon exchange-only (EO) qubits are a stro...
Quantum error correction is widely believed to be essential for large-scale quantum computation, but the required qubit overhead remains a central challenge. Quantum low-density parity-check codes can...
Quantum coherence plays a pivotal role in quantum algorithms. We study the coherence dynamics of the evolved states in Simon's quantum algorithm based on Tsallis relative $α$ entropy and $l_{1,p}$ nor...
Quantum protocols require classical signaling, and when classical signals propagate faster than quantum ones, standard rate-loss limits can be surpassed. We introduce an all-photonic measurement-devic...
Space-based entanglement distribution has the potential to extend the range of quantum communication beyond that achievable through optical fibres that are constrained by exponential losses. Quantum r...
Nonlinear spectroscopy is a cornerstone of quantum science, providing unique access to multi-point correlations, quantum coherence, and couplings that are invisible to linear methods. However, classic...
Insider Brief PRESS RELEASE — At the Quantum Defence Summit, OVHcloud, a global cloud player and the European cloud leader established in Canada since 2012, and Quandela, a photonic quantum computing ...
In a double-slit experiment with a bipartite system, the visibility of interference fringes depends on the availability of which-way information. Here, we report the formation of a Bell-like state of ...
We propose a quantum-resistant quantum teleportation (QRQT) framework protected by post-quantum cryptography (PQC) to secure the classical correction channel, which is vulnerable to quantum adversarie...
We develop an intrinsic enumerator framework for quantum error correction in unitary representations of symmetry groups. An intrinsic quantum code is a subspace of a representation $V$ of a group $G$,...
Quantum technologies promise a radically new way to solve classically intractable computing problems. Superconducting circuits as a platform are at the forefront of this field. The cryogenic operation...
Insider Brief PRESS RELEASE — The use of a quantum-inspired algorithm to calculate the unworkably vast potential properties of quantum materials is an early example of how quantum technology can be us...
French quantum startup C12 has released its official product roadmap, outlining a decade-long path toward a utility-scale, fault-tolerant quantum computer. The strategy is built on the company’s uniqu...
Insider Brief PRESS RELEASE –C12, a Paris-based quantum computing company developing processors based on carbon nanotube spin qubits, today unveiled its technology roadmap towards commercial fault-tol...
Insider Brief Germany has committed approximately €2 billion to quantum technology through its 2020 national initiative, with an additional €3 billion committed through its 2023 Action Plan on Quantum...
We present two general methods to implement quantum circuits for the direct measuring of local unitary invariants on quantum computers. We work these out for important three-qubit invariants, and also...
Flux-tunable superconducting qubits rely on fast flux control pulses to implement two-qubit entangling quantum gates, a key building block for quantum algorithms. However, distortion effects introduce...
Insider Brief PRESS RELEASE — An international research team led by Qclairvoyance Quantum Labs has demonstrated chemically accurate quantum simulations of complex molecular systems using superconducti...
Learning with large-scale datasets and information-critical applications, such as in High Energy Physics (HEP), demands highly complex, large-scale models that are both robust and accurate. To tackle ...
Insider Brief PRESS RELEASE — SDT, a global quantum design and manufacturing company and developer of the hybrid quantum cloud platform QuREKA, today announced an agreement with IonQ (NYSE: IONQ) that...
To study generator design for parameterized unitaries in quantum machine learning (QML), we propose an observable-guided generator selection algorithm for $ n $-qubit Pauli-string generator pools. The...
Voyager Space and IBM have successfully demonstrated a post-quantum secured communication link between Earth and the International Space Station (ISS). This orbital milestone utilized Voyager’s Space ...
An $n$-qubit Dicke state of weight $k$, is the uniform superposition over all $n$-bit strings of Hamming weight $k$. Dicke states are an entanglement resource with important practical applications in ...
The impossibility of simultaneously cloning non-orthogonal states lies at the foundations of quantum theory. Even when allowing for approximation errors, cloning an arbitrary unknown pure state requir...
Photonic architectures are one of the leading platforms for demonstrating quantum computational advantage, with Boson Sampling and Gaussian Boson Sampling as the primary schemes. Yet, we lack for thes...
We investigate the generation of quantum states for precision metrology in noisy two-level systems. These states are obtained by optimizing a variational quantum circuit to maximize the quantum Fisher...
Insider Brief PRESS RELEASE — Alice & Bob, a leader in fault-tolerant quantum computing, has hired more than 100 employees in seven months – taking its headcount to 251 and completing its hiring plan ...
The spin-off company ParityQC has implemented the largest quantum Fourier transform ever reported using an IBM quantum computer, thereby setting a new milestone on the path toward the industrial appli...
Insider Brief The most important shift in cybersecurity is not about a future breakthrough. It is about something that may have already happened. The data is already being harvested. At the Vanderbilt...
We present a minimal implementation of SU($N$) pure Yang-Mills theory in $3+1$ dimensions for digital quantum simulation, designed to enable quantum advantage. Building on the orbifold lattice simulat...
Toward the large-scale, practical realization of quantum computing, quantum error correction is essential. Among various quantum error-correcting codes, the surface code stands out as a leading candid...
Nine-year-old Kai's podcast explores how quantum technologies can transform our daily lives.
The classical simulation of universal quantum circuits is crucial both fundamentally and practically for quantum computation. We propose SyQMA, a simulator with several convenient features, particular...
The certification of quantum systems is essential for emerging quantum technologies, particularly in quantum communication, networks, and distributed computing, where maintaining a common reference fr...
Architectures could support quantum-chemistry simulations The post Collisional quantum gates created using fermionic atoms appeared first on Physics World .
Partial quantum error correction and quantum error mitigation are expected to coexist in the pre-fault-tolerant regime, yet the resource advantage of combining them remains insufficiently quantified. ...
The Quantum Insider Announces the 2026 Global Quantum + AI Challenge to Accelerate Practical Quantum Use Cases. Year-long, two-stage program convenes enterprises, researchers, and quantum technology p...
Join the audience for a live webinar on 13 May 2026 sponsored by IOP Publishing's journal, Nano Futures The post Atomic-scale devices and quantum platforms appeared first on Physics World .
Light's intrinsic carrier frequency of hundreds of terahertz theoretically enables information processing at terahertz clock rates. In optical quantum computing, continuous-variable quantum teleportat...
Levitated mesoscopic particles hold the promise of revolutionizing gravity sensing by using quantum effects. However, conventional quantum gravimeters based on such systems fail to harness the intrins...
Insider Brief PRESS RELEASE — Horizon Quantum Computing Pte. Ltd., the wholly-owned subsidiary of Horizon Quantum Holdings Ltd. (Nasdaq: HQ “Horizon Quantum”), a pioneer of software infrastructure for...
Concatenating quantum error correction codes scales error correction capability by driving logical error rates down double-exponentially across levels. However, the noise structure shifts under concat...
Insider Brief PRESS RELEASE — Wellcome Leap (Leap), a U.S. nonprofit founded by the Wellcome Trust to accelerate breakthroughs in human health, today announced the outcome of its Quantum for Bio (Q4Bi...
Andhra Pradesh Chief Minister N. Chandrababu Naidu has inaugurated India’s first open-access quantum computer testbeds, marking a significant milestone for the Amaravati Quantum Valley project. Launch...
We present a hardware demonstration and resource analysis of split-evolution quantum phase estimation (SE-QPE) on a Quantinuum System Model H2 quantum computer. SE-QPE is a modification to canonical Q...
Insider Brief PRESS RELEASE — The European quantum architecture company ParityQC today announced a new record benchmark implementation of the largest Quantum Fourier Transform (QFT), a cornerstone alg...
ParityQC, a European quantum architecture company, has announced a performance benchmark for the Quantum Fourier Transform (QFT), a foundational algorithm for cryptography, finance, and materials scie...
Quantum coherence is a fundamental issue in quantum mechanics and quantum information processing. We explore the coherence dynamics of the evolved states in HHL quantum algorithm for solving the linea...
We introduce a general witness-based framework for quantifying and operationally activating continuous-variable (CV) resources into discrete-variable (DV) bipartite entanglement or Einstein- Podolsky-...
Researchers at UC San Diego’s Picasso Lab have released technical results evaluating the NVIDIA Ising neural pre-decoder. The study explores how lightweight neural networks can accelerate and improve ...
Q-CTRL has announced the integration of the NVIDIA Ising open model family into its Boulder Opal Scale Up software, a move designed to replace manual calibration with autonomous, physics-informed AI a...
Matrix models are an important class of systems in string theory and theoretical physics, with applications to random matrix theory, quantum chaos, and black holes. Hamiltonian Monte Carlo simulations...
Insider Brief Peak Quantum, a Munich-based quantum computing startup, has completed a €2.2 million pre-seed funding round, bringing its total financing to more than €5 million. The company is focused ...
Recently, Dunjko et al.(PRL, 2018) proposed an algorithm for accelerating the solution of 3-satisfiability problems using a small-scale quantum computer. In this paper, we design a distributed quantum...
We study $\mathbb{Z}_3$-symmetric Rabi model that describes a three-level system coupled to two bosonic modes. We derive a mapping of the two-mode $\mathbb{Z}_3$ Rabi model onto a qubit-boson ring. Th...
Quantum coherence plays a central role in Grover's search algorithm. We study the Tsallis relative $α$ entropy of coherence dynamics of the evolved state in Grover's search algorithm. We prove that th...
The storage of quantum information in spin-ensembles is limited by practically unavoidable inhomogeneous broadening, and the macroscopic number of spins in such an ensemble makes the design of control...
We propose Scalable Quantum Molecular Generation (SQMG), a variational quantum-circuit for sampling molecular graphs using chemical priors on atoms and bonds. SQMG assigns a fixed 3-qubit register to ...
The strong dipole-dipole interaction of trapped Rydberg ions offers the possibility of sub-microsecond entanglement gates. For example a two-qubit Control-Phase gate in 88 Sr + ions can be realized, b...
Quantum circuit optimization is a central task in Quantum Computing, as current Noisy Intermediate Scale Quantum devices suffer from error propagation that often scales with the number of operations. ...
Spin shuttling has crystalized as a powerful and promising tool for establishing intermediate-range connectivity in semiconductor spin-qubit devices. Although experimental demonstrations have performe...
Insider Brief Just in time for World Quantum Day, the Senate Commerce Committee advanced a reauthorization of the National Quantum Initiative Act yesterday, adding provisions aimed at accelerating app...
Insider Brief PRESS RELEASE — JLL, a leading global commercial real estate and investment management company, today announced that it is working with Qlocity, a global quantum commercialization firm c...
Spin qubits have emerged as a leading platform for quantum information processing due to their long coherence times, small footprint, and compatibility with the existing semiconductor industry. We fir...
Superconducting microwave quantum networks is a rapidly developing field, enabling distributed quantum computing and holding a promise for hybrid architectures in quantum internet. Quantum secret shar...
The logical S gate implemented via twist defect braiding in the surface code is one of the major sources of overhead in fault-tolerant quantum computing, since an S-gate correction is required in ever...
Multi-task learning (MTL) improves generalization and data efficiency by jointly learning related tasks through shared representations. In the widely used hard-parameter-sharing setting, a shared back...
We propose and analyze an experimentally accessible Lindblad master equation for a quantum harmonic oscillator, simplifying a previous proposal to alleviate implementation constraints. It approximatel...
Quantum simulation is a cornerstone application of quantum computing, yet how fundamental quantum resources--entanglement and non-stabilizerness (``magic")--shape simulation fidelity remains an open q...
Infleqtion has announced the integration of the NVIDIA Ising Decoding AI model into its Sqale neutral-atom quantum computing platform. The collaboration aims to address the classical computing bottlen...
Variational quantum algorithms on bosonic quantum processors are an emerging paradigm for quantum chemistry calculations, exploiting the natural alignment between molecular structure and harmonic osci...
In Si(111) crystals, a strong biaxial tensile strain applied within the (111) plane is considered to shift the lowest energy point of the conduction band from the $Δ$ valley to the L valley. Electrons...
memQ has been selected by the Defense Advanced Research Projects Agency (DARPA) to develop a hardware- and network-aware quantum compiler under the Heterogeneous Architectures for Quantum (HARQ) progr...
Nature Physics, Published online: 15 April 2026; doi:10.1038/s41567-026-03246-y Quantum simulation of equilibrium many-body systems requires the ability to sample from the thermal distribution of quan...
In quantum physics, objects can exist in multiple states at the same time—a phenomenon known as quantum superposition, where a particle does not have a single definite value of position or momentum un...
IonQ (NYSE: IONQ) has secured a contract with the Defense Advanced Research Projects Agency (DARPA) as part of the Heterogeneous Architectures for Quantum (HARQ) program. This initiative focuses on th...
Sygaldry Technologies, Inc. has announced the close of $139 million in combined Series A and Seed financing to develop quantum-accelerated AI servers. The funding includes a $105 million Series A led ...
The emergence of Cryptographically Relevant Quantum Computers (CRQCs) presents a critical threat to classical cryptographic systems, particularly widely adopted protocols such as RSA, Diffie-Hellman (...
While Quantum Key Distribution (QKD) has been proven in lab environments, large-scale implementation requires integration with existing infrastructure. This paper proposes an opportunistic QKD framewo...
Discover how IonQ is leveraging synthetic diamond quantum memories to link trapped ions, neutral atoms, and superconducting qubits in DARPA’s new HARQ program.
IonQ successfully links two remote quantum systems via photonic interconnects. Discover how this AFRL-backed milestone paves the way for scalable, networked quantum computing.
Insider Brief PRESS RELEASE — From cancer research to challenges beyond the reach of traditional AI, four UK start-ups are using quantum technologies to bring new innovations to market. The start-ups ...
Insider Brief PRESS RELEASE — Lucy, inaugurated today by the Minister Delegate for Artificial Intelligence and Digital Affairs, Anne Le Hénanff, is the world’s most powerful quantum computer based on ...
Insider Brief PRESS RELEASE — On World Quantum Day, IQM Quantum Computers today announced AI-driven agentic calibration, an automated approach to tuning quantum systems with NVIDIA Ising. The developm...
Insider Brief PRESS RELEASE — Bull, a leader in advanced computing and AI, and Equal1, a global pioneer in silicon-powered quantum computing, today announced the signing of a Memorandum of Understandi...
NVIDIA has announced the release of NVIDIA Ising, the world’s first family of open-source AI models specifically designed to address the engineering bottlenecks of quantum processor calibration and er...
Insider Brief PRESS RELEASE — DARPA has launched the Heterogeneous Architectures for Quantum (HARQ) program, an effort aimed at overcoming one of the most persistent barriers in quantum computing: how...
The role of complex numbers in quantum theory extends beyond mathematical convenience, having recently been formalized as a resource under the framework of the resource theory of imaginarity. Operatio...
Insider Brief PRESS RELEASE — IonQ (NYSE: IONQ), the world’s leading quantum technology company, today announced that it has been awarded a contract in the Defense Advanced Research Projects Agency (D...
Insider Brief PRESS RELEASE — NVIDIA today announced the world’s first family of open source quantum AI models, NVIDIA Ising, designed to help researchers and enterprises build quantum processors capa...
Decoherence and dissipation, arising from unavoidable interactions with the environment, can exert a dual influence on transport in physical systems, suppressing coherent propagation while inducing di...
Instantaneous Quantum Polynomial-time (IQP) circuits are a candidate for demonstrating near-term quantum advantage, as their sampling task is believed to be classically hard in the ideal theoretical s...
Quantum key distribution protocols based on the quantum eraser phenomenon offer an operational advantage: automatic identification of matching and mismatching encoding choices through interference, el...
The $p_3$-PPT criterion is an experimentally viable relaxation of the well-known positive partial transposition (PPT) criterion for the certification of quantum entanglement. Recently, it has been gen...
Feedback-controlled electromigration (FCE) enables precise regulation of atomic migration by carefully optimizing multiple experimental parameters. However, manually fine-tuning these parameters poses...
The quantum kernel method, a promising quantum machine learning algorithm, possesses substantial potential for demonstrating quantum advantage. Although the majority of the quantum kernel is construct...
We demonstrate the Parity Architecture on quantum hardware, using the quantum Fourier transform (QFT) as a benchmark. As a result, a record performance in both fidelity and qubit count is achieved usi...
Model-independent estimation of the properties of quantum states is a central challenge in quantum technologies, as experimental imperfections, drifts, and imprecise models of the actual quantum dynam...
Insider Brief The comparison between quantum and classical computing has generated significant confusion in both technical communities and popular media. Headlines frequently frame the relationship as...
IonQ (NYSE: IONQ) and the University of Maryland (UMD) have announced a $7.5 million expansion of their partnership through the National Quantum Laboratory (QLab). Supported by the State of Maryland’s...
Insider Brief PRESS RELEASE — IonQ (NYSE: IONQ), the leading quantum company, and the University of Maryland (UMD) today announced a multi-year expansion of their partnership through the National Quan...
When quantum emitters couple indistinguishably to light, they can synchronize into a collective light matter system with radiative properties profoundly different from those of independent particles. ...
We present a quantum optimization framework for the Shipment Selection Problem (SSP) in electric freight logistics, developed jointly by IonQ and Einride. Idle gaps arising from stochastic shipment ca...
The speed and fidelity of dispersive readout of superconducting qubits should improve by increasing the amplitude of the measurement drive. Experiments show, however, that beyond some drive amplitude ...
Geometric frustration, arising from competing interactions that prevent simultaneous energy minimization, presents a fundamental challenge for variational quantum algorithms applied to quantum many-bo...
Hard scattering events in high-energy collisions produce highly virtual partons that subsequently fragment into collimated hadronic cascades. When such partonic showers evolve in a QCD medium, as in d...
Dynamic quantum circuits with mid-circuit measurement and classical feedforward are essential for near-term algorithms such as error mitigation, adaptive phase estimation, and Variational Quantum Eige...
Measurement-based quantum computation (MBQC) is a framework for quantum information processing in which a computational task is carried out through one-qubit measurements on a highly entangled resourc...
Near-term quantum machine learning (QML) models operate in environments wherein noise is unavoidable, arising from both imperfect classical data acquisition and the limitations of noisy intermediate-s...
Overview of quantum advantage in processing massive classical data. Researchers from Caltech, Google Quantum AI, MIT, and Oratomic have published a technical paper demonstrating an exponential space a...
Concept from theoretical physics could reduce qubit requirements The post Gauge theory could give quantum error correction a boost appeared first on Physics World .
We present a hardware-validated reference dataset for variational ground-state energy calculations of the hydrogen molecule H\(_2\) on several IBM Quantum processors available in 2026. Using a standar...
Device-independent quantum key distribution (DI-QKD) provides the highest level of cryptographic security by certifying secrecy through observed Bell inequality violations, independent of the internal...
Insider Brief PRESS RELEASE — Bloq, a leading quantum technology startup, today announced it has been selected to receive funding under the Government of India’s prestigious National Quantum Mission (...
In the pursuit of powerful and stable quantum computers, researchers at Chalmers University of Technology, Sweden, have developed the theory for an entirely new quantum system – based on the novel con...
Quantum computing is increasingly offering concrete solutions toward the simulation of nuclear structure, with the potential to overcome the exponential scaling that limits classical diagonalization m...
Superconducting quantum computing is advancing toward the thousand- and even million-qubit regime, making wafer-scale fabrication an essential pathway for achieving large-scale, cost-effective quantum...
Insider Brief PRESS RELEASE — BMO today announced new partnerships with Quantum Industry Canada (QIC) and the Chicago Quantum Exchange (CQE), strengthening the bank’s engagement with leading quantum r...
Color centers associated with group-IV dopants in diamond with long-lived nuclear spins have emerged as major candidates for distributed quantum computing nodes and quantum repeaters. Several proof-of...
We show that quantum computational imaging is advantageous in the setting of low-dose electron microscopy of beam-sensitive specimens. Two qudits placed near the electron beam enable full transfer of ...
Muhammad Sabieh Anwar describes a new way to engage students in quantum physics The post How pictures can help school students learn quantum physics appeared first on Physics World .
Insider Brief PRESS RELEASE — QAI Ventures and QCentroid have formed a strategic partnership to make quantum computing tangible, accessible, and actionable for industry. By combining QAI Ventures’ glo...
We propose a novel measurement-free scheme for stabilizing a spin-oscillator hybrid qubit via autonomous quantum error correction. The engineered Lindbladian renders the code space into an attractive ...
By Craig Costello Professor, School of Computer Science, Queensland University of Technology Online data is generally pretty secure. Assuming everyone is careful with passwords and other protections, ...
The search for quantum-like wave formulations of the Navier-Stokes (Schrödinger-Navier-Stokes, SNS for short) equations describing classical dissipative fluids has met with increasing attention in the...
We present a strategy for the quantum simulation of many-body lattice models with constrained Hilbert spaces. We focus on lattice gauge theories (LGTs), which underlie a wide range of phenomena in par...
Most quantum machine learning (QML) pipelines still rely on static encodings such as angle and amplitude maps, and this limits their ability to handle temporal information. To address this limitation,...
The quantum computing community is increasingly positioning quantum processors as accelerators within classical HPC workflows, analogous to GPUs and TPUs. However, many real-world applications require...
We present a directional-transport (DT)-based remote CZ gate and compiler for zoned neutral-atom arrays that overcomes movement-bound entanglement limitations. Current AOD-based shuttling faces row/co...
Insider Brief PRESS RELEASE — Pasqal, a global leader in neutral‑atom quantum computing, today announced a strategic collaboration with True Nexus, a computational intelligence company focused on maki...
Insider Brief PRESS RELEASE — Northwest Quantum Nexus (NQN), the regional quantum technology hub serving Washington, Oregon, Idaho, and Montana, today announces NW Quantum Day — a landmark regional su...
Insider Brief Don’t listen to TLC. When it comes to error correction, in fact, do go chasing waterfalls. A new study shows that artificial intelligence can unlock a “waterfall” effect in error correct...
Guest Post by Jim McMahon Superconducting qubits, which are used in quantum computers, are extremely sensitive to external influence. They need to be cooled to milli-Kelvin temperatures to maintain th...
Insider Brief PRESS RELEASE — In honor of the 2025 Nobel Prize in Physics, Qolab and IQCC are proud to announce the John Martinis Grants for Experimental Superconducting Device Physics. The goal of th...
IQM Quantum Computers has announced the opening of its first U.S. Quantum Technology Center, located within the University of Maryland’s Discovery District in College Park. The move is a strategic exp...
Pasqal and Saudi-based computational intelligence firm True Nexus (a branch of AI Bobby) have entered a strategic partnership to apply neutral-atom quantum computing to the study of protein functional...
Insider Brief PRESS RELEASE — IQM Quantum Computers, a global leader in superconducting quantum computing, and the Capital of Quantum (CoQ) announced today the establishment of IQM’s first U.S. Quantu...
Insider Brief Actually, don’t stick a fork in Bitcoin. While quantum computing poses a known threat to Bitcoin, a new proposal suggests the network could defend itself without changing its core protoc...
Insider Brief Small quantum computers could process massive datasets more efficiently than far larger classical systems, according to a study recently posted on arXiv that outlines a path to exponenti...
Overview of Q-NEXUS: a heterogeneous architecture made of specialized functional modules connected through an interconnect bus Q-CTRL has introduced Q-NEXUS, a heterogeneous quantum computing architec...
Insider Brief PRESS RELEASE — As part of its Quantum Initiative, the University of Houston convened global industry leader IonQ, national laboratory partners and energy executives for the symposium, “...
Horizon Quantum Holdings Ltd. (Nasdaq: HQ) and IonQ (NYSE: IONQ) have announced a strategic agreement for the purchase of a 6th-generation, chip-based 256-qubit trapped-ion system. This acquisition is...
Infleqtion (NYSE: INFQ), in collaboration with NASA’s Jet Propulsion Laboratory (JPL), has provided an upgraded physics package to the International Space Station (ISS) via the Northrop Grumman-24 (NG...
Insider Brief PRESS RELEASE — Terra Quantum AG (“Terra Quantum”), a leading quantum technology company, and Mountain Lake Acquisition Corp. II (“MLAC II”) (Nasdaq: MLAA), a special purpose acquisition...
Gibbs states are a natural model of quantum matter at thermal equilibrium. We investigate the role of external fields in shaping the entanglement structure and computational complexity of high-tempera...
Insider Brief PRESS RELEASE — The Cleveland Clinic Quantum Innovation Catalyzer Program announced its newest cohort of start-up company awardees advancing quantum computing applications in healthcare ...
Insider Brief PRESS RELEASE — Infleqtion (NYSE: INFQ) (the “Company”) a global leader in quantum computing and quantum sensing powered by neutral-atom technology, today announced 2026 revenue guidance...
Riverlane, a developer of quantum error correction (QEC) technology, has released performance metrics for its second-generation Deltaflow 2 system, demonstrating a mean latency of 16.32µs. This result...
Quantum error correction (QEC) is essential for scalable quantum computing. However, it requires classical decoders that are fast and accurate enough to keep pace with quantum hardware. While quantum ...
Insider Brief PRESS RELEASE — Infleqtion (NYSE: INFQ), a global leader in quantum computing and quantum sensing powered by neutral-atom technology, is providing upgraded quantum hardware to the Intern...
The integration of large language models (LLMs) into scientific research is accelerating the realization of autonomous ``AI Scientists.'' While recent advancements have empowered AI to formulate hypot...
The Gottesman-Kitaev-Preskill (GKP) code is a promising bosonic candidate for realizing fault-tolerant quantum computation. Among existing error-correction protocols for GKP code, the Steane-type sche...
Insider Brief PRESS RELEASE — Horizon Quantum Holdings Ltd. (“Horizon Quantum”), a pioneer of software infrastructure for quantum applications and IonQ — the world’s leading quantum platform company —...
We develop a theoretical description of quantum wave mixing (QWM) in a cascaded waveguide-QED system of two superconducting qubits, where the probe is driven by an external coherent tone and by the re...
Insider Brief PRESS RELEASE — SuperQ Quantum Computing Inc. (“SuperQ Quantum”, “SuperQ”, or the “Company”) (CSE: QBTQ; OTCQB: QBTQF; Frankfurt: 25X), a leader in sovereign quantum-safe infrastructure ...
Insider Brief Yaqumo Inc. (Headquarters: Chiyoda-ku, Tokyo; CEO: Kazuhiro Nakashoji), a startup developing scalable neutral-atom quantum computers, announced today that it has raised a Seed Extension ...
QuantumDiamonds GmbH, the Munich-based specialist in diamond-based quantum sensing, has successfully installed its first QD m.1 system in the United States at Eurofins EAG Laboratories in Sunnyvale, C...
The dark-state effect, caused by destructive interference, not only is an important fundamental research topic in atomic physics and quantum optics, but also has wide potential application in quantum ...
Efficient ground state search is fundamental to advancing combinatorial optimization problems and quantum chemistry. While the Variational Imaginary Time Evolution (VITE) method offers a useful altern...
Quantum systems are inherently fragile to environmental fluctuations or decoherence, limiting their advantages in applications of quantum information and quantum computation. State purification offers...
Variational quantum algorithms (VQAs) have established themselves as a central computational paradigm in the Noisy Intermediate-Scale Quantum (NISQ) era. By coupling parameterized quantum circuits (PQ...
Quantum kernel methods (QKMs) have emerged as a prominent framework for supervised quantum machine learning. Unlike variational quantum algorithms, which rely on gradient-based optimisation and may su...
Programmable neutral-atom arrays offer a promising route toward scalable quantum computing, where coherent qubit transfer enables non-local connectivity and reduces resource overhead. However, transfe...
Deploying quantum machine learning algorithms on near-term quantum hardware requires circuits that respect device-specific gate sets, connectivity constraints, and noise characteristics. We present a ...
Noise is a major challenge in quantum computing, affecting the reliability of quantum protocols. In this work, we analytically study the impact of various noise processes, such as depolarization, bit ...
Efficiently simulating many-body quantum systems with Coulomb interactions is a fundamental question in quantum physics, quantum chemistry, and quantum computing, yet it presents unique challenges: th...
Broadly applicable quantum advantage, particularly in classical data processing and machine learning, has been a fundamental open problem. In this work, we prove that a small quantum computer of polyl...
SuperQ Quantum Computing Inc. (CSE: QBTQ) has joined the Quantum Security Defence (QSECDEF) alliance, an international ecosystem focused on securing critical infrastructure against quantum-enabled thr...
A foundational result in relativistic quantum information theory due to Peres, Scudo, and Terno, is that von Neumann entropy is not Lorentz invariant. Motivated by the "It from Qubit" paradigm, here w...
In dense neutrino gases, which exist for instance in supernovae, the flavour states of different neutrinos may become entangled with one another. The theoretical description of such systems may theref...
A method that relies on hitting materials with neutrons can measure how much quantum entanglement hides within them, which could enable new kinds of quantum technology
We extend the SeQUeNCe discrete-event simulator with physics-based models for polarization-encoded photonic quantum networks. Our framework integrates Jones-calculus optical components, including an S...
The deterministic generation and SWAP of Fock states in isolated high-Q modes form a core foundation for architectures in bosonic quantum computing. Conventionally, these operations necessitate strong...
The Quantum Approximate Optimization Algorithm (QAOA) is a leading framework for quantum combinatorial optimization. The Vehicle Routing Problem (VRP), a core problem in logistics and transportation, ...
QBoson, a Beijing-based developer of photonic quantum hardware, has closed a Series B funding round totaling CNY 1 billion ($145 million). The capital injection was jointly led by a consortium of stat...
The computational complexity of $\mathsf{QAC}^0$, which are constant-depth, polynomial-size quantum circuit families consisting of arbitrary single-qubit unitaries and $n$-qubit generalized Toffoli ga...
Implementing high-fidelity controlled two-qubit gates in dipole-dipole interacting systems, such as rare-earth-ion crystals, in hindered by spectral inhomogeneity and weak coupling. Existing method of...
Insider Brief PRESS RELEASE — Equal1, a leader in silicon-based quantum computing, and Q-CTRL, the global leader in quantum infrastructure software, today announced a first-of-its-kind strategic partn...
We demonstrate complete coherent control of a single spin qubit confined in a self-assembled InAs negatively charged quantum dot subjected to an Oblique magnetic field, and directly compare this regim...
Insider Brief PRESS RELEASE — Can a handful of atoms outperform a much larger digital neural network on a real-world task? The answer may be yes. In a study published in Physical Review Letters, a tea...
Designing quantum neural networks (QNNs) that are both accurate and deployable on NISQ hardware is challenging. Handcrafted ansatze must balance expressivity, trainability, and resource use, while lim...
Insider Brief PRESS RELEASE — In new research published in Physical Review X, scientists have designed quantum control protocols that generate processes more consistent with time flowing backward than...
Insider Brief Cloudflare is accelerating its timeline to secure the Internet against quantum attacks, citing new research and industry signals that suggest the threat may arrive sooner than expected. ...
Insider Brief PRESS RELEASE — Rigetti Computing, Inc. (Nasdaq: RGTI) (“Rigetti” or the “Company”), a pioneer in full-stack quantum-classical computing, today announced the general availability of its ...
Insider Brief PRESS RELEASE — Multipeak Global and RAQS Quantum today announced a strategic collaboration designed to bridge the gap between quantum solutions and commercial deployment. By uniting Mul...
The quantum nature of gravity remains experimentally unverified, despite recent proposals to probe it using tabletop experiments such as gravity-mediated entanglement schemes. In parallel, consistent ...
Secure communications with quantum key distribution over fiber-optic links is one of the few recognized applications of quantum physics at the level of individual quanta -- single C-band photons. Curr...
We propose a hardware efficient quantum residual neural network which implements residual connections through a deterministic linear combination of identity and variational unitaries, enabling fully d...
The European Union is developing the European Quantum Communication Infrastructure (EuroQCI) as a pan-European network to provide secure communication capabilities across Member States, including gove...
We present a first real-time study of hadronic scattering in a $(1+1)$-dimensional SU(2) lattice gauge theory with fundamental fermions using tensor-network techniques. Working in the gaugeless Hamilt...
Quantum computing simulators form the classical software foundation on which virtually all quantum algorithm research depends. We present Broken Quantum, the first comprehensive formal security audit ...
Optical loss is a common bottleneck in photonic quantum information processing, undermining the quantum advantage over classical approaches. Although several countermeasures, such as quantum distillat...
A particular type of linear optical multiport, the Grover four-port, has previously been shown to couple the spatial symmetry of a photon to its direction of travel. It is shown here that use of a non...
Robust continuous-variable (CV) quantum information processing requires correcting realistic errors in bosonic systems, but all existing schemes rely on auxiliary Gottesman-Kitaev-Preskill (GKP) state...
Rigetti Computing has announced the general availability of its Cepheus-1-108Q quantum computing system. The 108-qubit processor is accessible via the Rigetti Quantum Cloud Services (QCS) platform and...
The field of high-dimensional quantum photonics involves the use of multimode photonic degrees-of-freedom such as the spatial, temporal, or spectral structure of light to encode multi-level quantum st...
Quantum operations on pure states can be fully represented by unitary matrices. Variational quantum circuits, also known as quantum neural networks, embed data and trainable parameters into gate-based...
Quantum Secure Encryption Corp. (QSE) has announced the official launch of QPA v2, an enterprise-grade platform designed to automate and manage the migration to post-quantum cryptography (PQC). The re...
IQM Quantum Computers has entered into a commercial agreement with Galaxy Systemy Informatyczne for the on-premises delivery of an IQM Radiance 54-qubit system. Scheduled for installation at Galaxy’s ...
The computational cost of concurrent multiscale finite element methods is dominated by the repeated solution of microscopic representative volume element (RVE) problems at macroscopic quadrature point...
Assembling genomes from short-read sequencing data remains difficult in repetitive regions, where reference bias and combinatorial complexity limit existing methods. Pangenome-guided sequence assembly...
While recent advances have established efficient quantum algorithms for preparing Gibbs states of finite-dimensional systems, comparable complexity results for bosonic and other infinite-dimensional m...
Due to rising electricity demand, accurate short-term load forecasting is increasingly important for grid stability and efficient energy management, particularly in resource-constrained edge settings....
Hybrid quantum neural networks are increasingly explored for classification, yet it remains unclear how their performance and quantum behavior scale with circuit depth and qubit count. We present a co...
Entanglement is a key quantity for characterizing quantum correlations in particle scattering processes, but its direct evaluation is computationally demanding on quantum hardware. In this work, we in...
We introduce a framework for distributed quantum inference under communication constraints. In our model, $m$ distributed nodes each receive one copy of an unknown $d$-dimensional quantum state $ρ$, b...
Insider Brief PRESS RELEASE — UK-based quantum technology company Moth has announced two senior hires as it expands its operations in the United States, marking a significant step in its mission to ma...
Insider Brief Quantum computing is shifting from a theoretical pursuit to a strategic priority for the energy sector as rising demand for compute power reshapes infrastructure, policy and investment d...
Insider Brief PRESS RELEASE — IQM Quantum Computers, a global leader in superconducting quantum computing, today announced a commercial milestone to deploy a hybrid integrated quantum computer at Gala...
We introduce a hybrid classical-quantum algorithm for simulating a Hamiltonian of the form $H= \sum_{i=1}^K H_i = \sum_{i=1}^K H_{i_1} \otimes H_{i_2} \otimes \cdots \otimes H_{i_M}$. Given that the e...
Quantum error correction is a crucial technology for fault tolerant quantum computing. On superconducting platforms, hardware defects in large scale quantum processors can disrupt the regular lattice ...
Dynamical decoupling is a long-established and effective way to suppress unwanted interactions in qubit systems, enabling advances in fields ranging from quantum metrology to quantum computing. For ge...
Consider a rectangular grid of qubits in 2D with single-qubit and nearest-neighbor two-qubit operations subject to local stochastic Pauli noise. At different length scales, this setup describes both a...
Insider Brief For nearly a century, scientists have been searching for evidence of dark matter, an invisible substance they believe makes up most of the mass of the universe. Such a discovery could le...
Mid-circuit measurements are one of the biggest practical hurdles in quantum error correction on encoded qubits. Researchers in Innsbruck and Aachen have now proposed and experimentally demonstrated t...
Insider Brief PRESS RELEASE — BTQ Technologies Corp. (“BTQ” or the “Company”) (Nasdaq: BTQ) (CBOE CA: BTQ), a global quantum technology company focused on securing mission-critical networks, today ann...
Insider Brief PRESS RELEASE — In August 2024, the National Institute of Standards and Technology finalized the first three post-quantum cryptography standards — FIPS 203, 204, and 205 — after an eight...
Amplitude Amplification offers a provable speedup for search problems, which is leveraged in combinatorial optimization by Grover Adaptive Search (GAS). The protocol demands deep circuits that are cha...
Insider Brief PRESS RELEASE — Quantum computers are often described as the supercharged engines of the future — machines capable of solving certain problems that are classically intractable for today’...
The development of large-scale superconducting quantum computing requires efficient in-situ control methods that allow high-fidelity operations at millikelvin temperatures. Superconducting circuits ba...
We propose a quantum machine learning framework for estimating classical covariance matrices using parameterized quantum circuits within the Pauli-Correlation-Encoding (PCE) paradigm. We introduce two...
When it comes to discriminating between two quantum states, trace distance is one of the well-known metrics used in quantum computation and quantum information theory. While there are several quantum ...
We present a layered and modular network architecture that combines Quantum Key Distribution (QKD) and Post-Quantum Cryptography (PQC) to provide scalable end-to-end security across long distance mult...
For quantum algorithms for problems in which the task is to compute an entire field of values, like e.g. computational fluid dynamics (CFD), it is often proposed amplitude encoding w.r.t. multiple qub...
Insider Brief Solana’s push toward quantum-resistant security could sharply reduce its transaction speeds, highlighting a growing trade-off between future-proofing crypto networks and maintaining perf...
A fundamental problem in quantum physics is to establish whether a multiparticle quantum state can be uniquely determined from its local marginals. In theory, this problem has been addressed in the ex...
As quantum computing moves from isolated experiments toward integration with large-scale workflows, the integration of quantum devices into HPC systems has gained much interest. Quantum cloud provider...
Quantum phase estimation~(QPE) is central to numerous quantum algorithms, yet its standard implementation demands an $\calO(m^{2})$-gate quantum Fourier transform~(QFT) on $m$ control qubits-a prohibi...
Most people think of diamonds as high-end adornments. Not Ania Bleszynski Jayich. The UC Santa Barbara physicist sees diamonds, which she grows in the UC Quantum Foundry, as a potentially powerful fou...
Yuval Boger interviews mathematician Gil Kalai about his long-standing skepticism regarding scalable quantum computing. Kalai explains two main arguments behind his theory: correlated noise that may d...
Q-Factor, a Tel Aviv-based quantum hardware startup, has exited stealth with $24 million (USD) in seed funding to develop a million-qubit neutral atom quantum computer. The investment round was led by...
Large-scale classical simulation of IQPE quantum circuits demonstrated in this work. Larger qubit counts and more Hamiltonian terms result in deeper circuits and longer simulation times. Credit: QIQB,...
Rigetti Computing (Nasdaq: RGTI) has officially expanded its on-premises footprint with the sale of a 9-qubit Novera™ QPU to the University of Saskatchewan (USask). This acquisition marks a historic m...
Quantum mechanics is extremely successful at describing the behavior of matter at the atomic level. This success forces one to accept that certain aspects of physical reality go far beyond our intuiti...
Fault-tolerant quantum computing requires quantum error correction (QEC): Encoding one logical qubit into many physical qubits so that, below a threshold error rate, the logical error rate falls rapid...
A University of Sydney quantum physicist has developed a new approach to quantum error correction that could significantly reduce the number of physical qubits required to build large-scale, fault-tol...
Portable device could find applications in quantum computing and optical clocks The post Trapped ion quantum technology gets smaller appeared first on Physics World .
Quantum computers of the future may be closer to reality thanks to new research from Caltech and Oratomic, a Caltech-linked start-up company. Theorists and experimentalists teamed up to develop a new ...