414 curated articles
Xanadu Quantum Technologies Ltd. (NASDAQ/TSX: XNDU) has announced its financial results for the first quarter ended March 31, 2026. This quarter represents a major landmark for the Toronto-based company, featuring its public market debut as the first pure-play photonic quantum computing firm on the ...
Guest Post by By Itamar Sivan, CEO and Co-Founder, Quantum Machines For the past decade, quantum computing has often been framed as a race for better,...
Insider Brief Xanadu reported a sharp increase in revenue and outlined plans for expanded manufacturing and capital access as the photonic quantum com...
Origin Quantum unveiled its fourth-generation superconducting quantum computer, Origin Wukong-180, on Saturday. The quantum computer is equipped with ...
Equal1 has announced the release of RacQ, a silicon-spin quantum computing system designed for integration into standard 19-inch data center racks. An...
IonQ has officially opened a new 22,000-square-foot laboratory suite in Boulder, Colorado, dedicated to quantum computing research, development, and s...
Characterizing large quantum systems with minimal assumptions is a central challenge in quantum information science. Self-testing provides the stronge...
The classical simulation of quantum algorithms is a crucial tool for circuit development, testing, and validation. Although acceleration using GPUs si...
How much energy does a quantum computer consume? Are they more efficient than their classical counterparts? In this work, we make a step towards answe...
We derive closed-form propagators for any $K$-qubit subsystem of a closed $N$-qubit network with a single conserved excitation. A single transition am...
The Majorana stellar representation translates abstract quantum spin states into intuitive geometric constellations on the Bloch sphere, revealing sym...
Insider Brief Finnish quantum computing company IQM Finland Oy moved closer to a U.S. public listing after filing registration documents tied to its p...
Origin Quantum officially launched the Origin Wukong-180, marking the fourth generation of its domestically developed superconducting quantum computin...
We consider an extended model of quantum computation where a scalable fault-tolerant quantum computer is coupled to one or more ancilla qubits that ev...
Nitrogen-vacancy (NV) centers in diamond are a leading platform for solid-state quantum sensing and quantum information processing. While most optical...
We propose a superconducting circuit hosting $d$ low-lying states, well separated from the rest of the spectrum, that naturally realizes a qudit syste...
The parametric amplification enabled by two-photon driving constitutes a versatile platform for advanced quantum technologies. We present an optimized...
Speech emotion recognition (SER) remains fragile in real-world conditions because emotional cues are subtle, speaker-dependent, and easily confounded ...
Entanglement can hide in two fundamentally different ways. First, multi-copy correlations can carry information that no single-copy measurement on an ...
As quantum computers become available through multi-tenant cloud platforms, ensuring privacy against adversaries sharing the same quantum processing u...
We solve an open problem in entanglement theory posed by Yu et al., {\it Nature Communications 12, 1012 (2021)}. The problem is to show, via an entang...
In quantum many-body dynamics, locally encoded information typically scrambles across the entire system, becoming inaccessible to local probes. The up...
High-purity germanium (Ge) has re-emerged as a versatile semiconductor platform for spin-based quantum information processing because it combines matu...
A quantum compiler is a critical piece in the quantum computing pipeline since it allows an abstract quantum circuit to be run on a physical quantum c...
Integrated photonics has emerged as a promising platform for quantum communication and quantum computation. Thin-film lithium niobate (TFLN) has gaine...
A new quantum-inspired algorithm has cracked a problem so massive that conventional supercomputers struggle to even approach it. Researchers used the ...
Hybrid quantum--classical pipelines increasingly support applications such as drug discovery, fraud detection, and cloud quantum processing unit (QPU)...
The quantum approximate optimization algorithm (QAOA) holds promise for combinatorial optimization but is constrained by limited qubits. While divide-...
We consider the multi-qubit fixed-excitation state transfer along the spin chain with dipole-dipole interaction subjected to the interaction with envi...
Quantum information platforms enable analog quantum simulations, such as quantum annealing, offering a promising route to solving complex combinatoria...
Insider Brief PRESS RELEASE — Today, Governor Polis and the Global Business Development Division of the Colorado Office of Economic Development and In...
We investigate the quantum computing of the vibrational dynamics of CO$_2$ and H$_2$O by constructing the vibrational Hamiltonian in qubit and qudit f...
We investigate the purification dynamics of a single qubit under continuous in time monitoring. By employing a collisional model framework where the s...
When multiple quantum emitters couple to a common electromagnetic environment, interference in their collective radiative dynamics gives rise to super...
Quantum computation holds the promise of solving certain complex problems exponentially faster than classical computers. However, the high prevalent n...
Insider Brief PRESS RELEASE — Photonic Inc., a global leader in distributed quantum computing, today announced the final close of over $200M USD ($275...
Charge noise is an important factor limiting qubit coherence and relaxation in solid-state devices. In bilayer graphene (BLG) quantum dots, recently e...
Insider Brief PRESS RELEASE — New York University’s NYU Nanofabrication Cleanroom has enhanced its quantum fabrication capabilities by installing an O...
Achieving uniform and scalable control of semiconductor spin qubits remains a key challenge for large scale quantum computing. In this work, we invest...
Quantum error correction (QEC) is essential for enabling quantum advantages, with decoding as a central algorithmic primitive. Owing to its importance...
We investigate a probe state preparation protocol based on two non-selective generalized quantum measurements to enhance parameter estimation in singl...
Barren plateaus in variational quantum circuits are commonly attributed to strong mixing dynamics that cause gradient variance to vanish exponentially...
We develop an adiabatic quantum simulation framework on gate-based quantum computers to probe topological signatures of the one-dimensional fermionic ...
Nanophotonic quantum memory is a vital component for scalable quantum information processing in quantum computing, networking, and sensing. Here we st...
While world models learn compact representations of complex environments, they lack a physics-grounded metric to assess the structural fidelity of the...
Scaling superconducting quantum processors beyond the constraints of monolithic planar architectures is essential for fault-tolerant quantum computati...
Losses are ubiquitous in physics and are usually regarded as harmful in quantum information processing. Here, we propose a loss-induced scheme to achi...
We investigate the relationship between quantum battery capacity and quantum resources in a two-qubit system consisting of mutually coupled battery an...
The ability to locally control and measure subsets of ancilla qubits in an efficient and crosstalk-free manner is a key ingredient in quantum error co...
We consider the problem of synthesizing Clifford quantum circuits for devices with all-to-all qubit connectivity. We approach this task as a reinforce...
We report on a gate-based variational quantum classifier implemented with single photons and probabilistic gates, to emulate the standard quantum circ...
We introduce Unitaria, a Python library that brings the simplicity of classical linear algebra toolkits such as NumPy and SciPy to the implementation ...
The scalability of quantum computing is currently limited by physical, technological, and architectural constraints that hinder the integration of a l...
Quantum computers are increasingly accessible, yet demonstrations of physically meaningful simulations for real materials remain scarce. In our work w...
Integrated photonic technologies have recently shown significant advances, enabling the possibility to implement reconfigurable interferometers with i...
Examining and controlling the interaction between semiconductor quantum qubits and their environment can boost semiconductor quantum technologies, whi...
We introduce a cavity-enhanced optical architecture for collective quantum processing in which logical qubits are encoded in the polarization subspace...
Artificial intelligence and machine learning have been widely adopted both in the industry and in everyday life, but at the cost of high compute deman...
In this paper, we present SCALAR (Symbolic Conjecture and LLM-Assisted Reasoning), a neurosymbolic framework for automated conjecture generation in qu...
We investigate multipartite entanglement via the statistical properties of pure quantum states of n-qubits. By analyzing the distribution of purity am...
Variational quantum algorithms have attracted attention for their potential to solve combinatorial optimization problems. We study how the choice of e...
It's hard to mix electronic manufacturing and flexible geometry.
The growing computational demands of classical neural networks have intensified the search for energy-efficient and powerful computational alternative...
Intrinsically protected superconducting qubits are a promising route toward enhancing coherence times and advancing hardware towards applications in q...
The cavity-mediated coupling between magnons in an yttrium-iron-garnet (YIG) sphere and a superconducting qubit has recently been demonstrated as a ne...
We consider the kinematic axioms of quantum mechanics projectively. Instead of normalized (pure) states up to global phase, states become one-dimensio...
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In a comprehensive architectural series, IonQ has detailed the "Walking Cat" blueprint, a complete engineering specification for a fault-tolerant quan...
Quantum simulation has begun to penetrate the field of quantum chemistry in hopes of efficiently calculating ground state energies and approximating r...
Whether chirality-induced spin selectivity (CISS) reflects coherent SU(2) spin rotation or incoherent spin-dependent filtering is a central unresolved...
Variational quantum circuits with angle encoding implement truncated Fourier series, and architectures arranging $N$ qubits with $L$ encoding layers e...
Large language models (LLMs) have transformed artificial intelligence, yet classical architectures impose a fundamental constraint: every trainable pa...
We present a fault-tolerant mapping of rotated surface codes onto a $2\times N$ silicon spin-qubit railway architecture, utilizing electron shuttling ...
Recent demonstrations of squeezing generation using Traveling Wave Parametric Amplifiers (TWPAs) have opened the way for the application of broadband ...
Single-photon sources that are bright, pure, and interference-ready are essential for quantum communication and photonic quantum information processin...
IonQ has announced its financial results for the first quarter ended March 31, 2026, marking the largest quarter in the company's history. The company...
We present a scalable quantum simulation framework for real-time dynamics of the multi-flavor Gross-Neveu model in 1+1 dimensions. Using superconducti...
Q-CTRL, in collaboration with IBM, has demonstrated what it defines as "practical quantum advantage" by utilizing the IBM Quantum Platform to simulate...
Quantum error correction (QEC) is essential for achieving low error rates required for fault-tolerant quantum computation. In stabilizer-based codes s...
Scientists have discovered the cause of a persistent glitch that continues to disrupt superconducting quantum computers, even when they have built-in ...
We address the circuit-design problem of maximizing quantum magic in early fault-tolerant quantum computing (early FTQC), where logical dynamics nativ...
Neutral atom platforms are analogue quantum simulators that offer the possibility to map graphs onto a 2D qubit register using programmable Rubidium a...
Graph embedding is a recurrent problem in quantum computing, for instance, quantum annealers need to solve a minor graph embedding in order to map a g...
Quantum low density parity check (qLDPC) codes, particularly bivariate bicycle (BB) codes, achieve competitive fault tolerance thresholds while offeri...
Insider Brief PRESS RELEASE — The Quantum Volume (QV) test is an internationally applied benchmark originally proposed by IBM. The benchmark rigorousl...
Deep reinforcement learning (DRL), acting as a novel and powerful paradigm for quantum optimal control, offers transformative opportunities for advanc...
We derive the unitary dynamics of a four-qubit isotropic Heisenberg XXX chain with tunable next-nearest-neighbor coupling $α$, initialized in a Bell-t...
Physicists at ParityQC have established that universal measurement-based quantum computing (MBQC) is possible using single-qubit measurements restrict...
This study investigates the performance and ergotropy protection of open collective quantum batteries subject to superradiant decay. By employing a pa...
QuantWare, the Delft-based developer of superconducting quantum processing units (QPUs), has announced a $178 million (€152 million) Series B funding ...
We report experimental digital quantum simulation of the one-dimensional Fermi-Hubbard model on a superconducting quantum processor at a scale beyond ...
The model of a topological quantum computer is a promising one due to its natural resistance to noise and other errors. Operations in such a computer ...
Shor's algorithm is one of the most promising applications of quantum computers. However, since $\sim 10^6$ physical qubits are believed to be require...
Insider Brief PRESS RELEASE — QuantWare, the leading industrial quantum processor company, today announced a $178 million (€152 million) Series B roun...
The quantum internet aims to interconnect distant devices and enable large-scale computation through distributed quantum algorithms. One of the key ob...
Pauli-based computation (PBC) provides a universal framework for executing fault-tolerant quantum algorithms using Pauli measurements and magic states...
On noisy intermediate-scale quantum (NISQ) devices, expectation values of many observables are obtained through sampling-based approximations to trace...
We propose a quantum multi-level estimation framework for a functional $\sum_{i=1}^n f(p_i)$ of a discrete distribution $(p_i)_{i=1}^n$. We partition ...
Nonlocal entanglement generation among multiple remote quantum nodes provides a critical foundation for a variety of counterintuitive quantum applicat...
Distributed quantum algorithms offer a promising pathway to scale variational quantum algorithms beyond the constraints of noisy intermediate-scale qu...
In this article, we take a close look at Entropy Quantum Computing (EQC), a computational paradigm developed by Quantum Computing Inc. (QCi), which de...
Dual-species arrays of ultracold neutral atoms have recently attracted increased interest due to the ability to independently control different atomic...
Quantum machines are among the most promising technologies expected to provide significant improvements in the following years. However, bridging the ...
Among the limitations of current quantum machines, the qubits count represents one of the most critical challenges for porting reasonably large comput...
Insider Brief IBM’s decision to put a quantum computer on the cloud 10 years ago helped transform a niche research field into a globally accessible co...
Qruise has completed a proof-of-concept integration of its QruiseOS automated bring-up software at the Israeli Quantum Computing Center (IQCC). Utiliz...
Qruise has announced a strategic collaboration with XeedQ and the Modular Supercomputing and Quantum Computing (MSQC) group at Goethe University Frank...
Researchers from the Quantum Science Center (QSC), led by teams at Purdue University, Oak Ridge National Laboratory (ORNL), and IBM, have achieved the...
The Traveling Salesman Problem (TSP) is a prototypical combinatorial optimization problem, but its quantum implementation is limited by the O(n^2)-qub...
Insider Brief PRESS RELEASE — Researchers at the University of Oxford have demonstrated a new type of quantum interaction using a single trapped ion. ...
The accurate estimation of observables is a crucial task in quantum computing. Recent advances have highlighted the need for (a) specialized protocols...
Accurate models of quantum processors are essential for understanding, calibrating, and improving their performance. In practice, model construction m...
Reliable long-range qubit shuttling is a powerful tool for scalable quantum computing architectures. We investigate strategies to improve the coherenc...
High-fidelity logical \emph{T}-gate realization constitutes a core prerequisite for large-scale fault-tolerant quantum computing. However, conventiona...
Nature Physics, Published online: 01 May 2026; doi:10.1038/s41567-026-03262-y Coupling semiconductor qubit devices to microwave resonators provides a ...
We study the entanglement distance of variational quantum states for two-qubit and multi-qubit systems. These states are constructed using variational...
This thesis, explores the quantum entanglement and evolution through both a geometric and dynamical perspective. The first part focuses on classical p...
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 ac...
Multitenancy increases throughput and reduces costs in cloud-based quantum computing, but concurrent job execution introduces security risks through i...
Electro-optic modulators are key components for photonic quantum computing, particularly in fully cryovenic integrated platforms where low loss and co...
Despite rapid recent advances in quantum machine learning, the field is in many ways stuck. Existing approaches can exhibit serious limitations, and w...
We study the generation of metrologically useful entanglement in a three-level (spin-1) system naturally realized in arrays of dipole-interacting Rydb...
Levitation of microscopic objects in vacuum combines exceptional environmental isolation with precise control of their dynamics, pushing the limits of...
Quantum bits (qubits) are the fundamental building blocks of quantum information processing. A novel qubit platform invented at the U.S. Department of...
The Quantum Lattice Boltzmann Method (QLBM) has emerged as one of the most promising quantum computing approaches for the numerical simulation of prob...
Planar germanium heterostructures hosting hole-spin qubits are among the leading platforms for scalable semiconductor-based quantum computing. Yet, de...
Insider Brief PRESS RELEASE — Quantum bits (qubits) are the fundamental building blocks of quantum information processing. A novel qubit platform inve...
Practical applicability of quantum optimisation on near term devices is constrained by limited qubit counts and hardware noise, which restricts the sc...
We propose a method for constructing multi-qubit entangled quantum states representing weighted tripartite graphs. An expression for the entanglement ...
A double-transmon coupler (DTC) enables a fast, high-fidelity CZ gate between two highly detuned, fixed-frequency transmon qubits. Moreover, a recentl...
In multi-core quantum computing architectures, waveguide-mediated interconnects are essential for facilitating fast, high-fidelity quantum state trans...
Bosonic quantum error correction encodes a logical qubit in an oscillator, avoiding the hardware overhead of large qubit arrays. Among such encodings,...
Insider Brief PRESS RELEASE — Qubit Pharmaceuticals, a deeptech company specializing in the discovery of new drug candidates, today announced a strate...
Insider Brief PRESS RELEASE — Groove Quantum today announced it has raised €16 million in combined funding and demonstrated an 18-qubit semiconductor ...
Orbital energy splittings are important quantum dot parameters for the operation of hole spin qubits. They are known to depend on the lateral confinem...
We report the largest trapped-ion hardware demonstration of lattice protein-folding optimization to date, using bias-field digitized counterdiabatic q...
We propose a method to evaluate general thermodynamic fluctuations in open quantum systems, based on performing a two-point measurement scheme on the ...
We present a quantum feature-selection framework based on a higher-order unconstrained binary optimization (HUBO) formulation that explicitly incorpor...
Finite local Hilbert-space truncations arise naturally in quantum simulations of lattice field theories and motivate qudit encodings, but their fault-...
Long-range quantum entanglement is essential for building large-scale quantum networks and unconditionally secure cryptographic systems based on quant...
Hybrid quantum--classical workflows often execute large ensembles of circuits that differ syntactically but implement identical operations, leading to...
We investigate variational quantum classifiers (VQCs) for land-cover classification from multispectral satellite imagery, adopting a feature-map persp...
Compiling time-evolution operators of the form $U(t)=e^{-iHt}$ into hardware-native gate sequences is a central bottleneck for digital quantum simulat...
Quantum state discrimination is a fundamental information processing task that serves as a building block for numerous applications and provides impli...
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...
Two qubits strongly coupled to a common bosonic reservoir can become entangled with each other, despite having no direct interaction. In equilibrium, ...
Recent advances in quantum computing have enabled the development of quantum processors with hundreds of qubits. However, noise continues to limit the...
Monarch Quantum and Oratomic have entered a strategic partnership to accelerate the development of utility-scale, fault-tolerant quantum computers. Th...
Continuous-variable quantum systems are promising candidates for quantum computing and quantum information processing. It is widely known that quadrat...
Quantum computing calibration depends on interpreting experimental data, and calibration plots provide the most universal human-readable representatio...
Distributed Quantum Computing (DQC) and Quantum Error Correction (QEC) rely on dynamic circuits that include Mid-Circuit Measurements (MCMs) and class...
The decomposition of complex quantum operations into experimentally feasible gate sets has been a central challenge since the early development of qua...
As emerging quantum architectures evolve into heterogeneous networks combining different physical substrates, such as qubits for logic and higher-dime...
We explore what the integrated use of quantum spatial distribution (QSD), or more specifically, superposition of both spin and position states of part...
Insider Brief PRESS RELEASE — Monarch Quantum, a U.S.-based quantum photonics company developing integrated photonics systems for scalable quantum com...
We find the ground-state energy of the Ising model using the Cascaded Variational Quantum Eigensolver (CVQE) algorithm with the Guided-Sampling Ansatz...
We compare four polynomial-resource measurement strategies, (I) $Z$-basis-only, (II) nearest-neighbor $ZZ$ (NN), (III) multi-basis ($Z$, $X$, $Y$), an...
We propose a general method to fully characterize a classical stochastic noise process causing qubit dephasing through repetitive Ramsey interferometr...
Bent Boolean functions extremal objects that maximally resist affine approximation are notoriously hard to construct for large numbers of variables. W...
Image classification is a core task of intelligent sensing, conventionally follows a sequential imaging then processing pipeline. However, redundant h...
A K-mirror rotates the wavefront of an incident optical field. However, the rotation always introduces polarization changes in the transmitted field. ...
Minor embedding is a required compilation step for quantum annealing, mapping logical problem graphs onto sparse hardware topologies. Despite its cent...
Insider Brief The timeline for quantum computers breaking modern encryption has compressed significantly. Research published between May 2025 and Marc...
Insider Brief PRESS RELEASE — As quantum computers advance, they are expected to be able to break tried-and-true security schemes that currently keep ...
We investigate the role of continuous measurement and postselection in the dynamics and entanglement of a transmon-cavity-transmon coupled system. In ...
Scaling superconducting quantum processors is increasingly constrained by the wiring, heat load, and calibration overhead associated with delivering h...
Discrete time crystals are non-equilibrium phases of matter in periodically driven systems, characterized by robust subharmonic oscillations and broke...
Combining recent advances in superconducting quantum hardware, we explore quantum correlations in a previously inaccessible regime by observing \emph{...
Semiconductor spin qubits are a promising platform for large-scale quantum computing, but have yet to take full advantage of the broad class of quantu...
Gatemon qubits are based on a superconductor-quantum dot-superconductor (S-QD-S) junction which enables in situ electrostatic tuning via a gate electr...
Quantum computers could solve problems beyond the reach of classical devices, but this potential depends on quantum error correction (QEC) to protect ...
IQM Quantum Computers has reached an agreement with TOYO Corporation for the sale and deployment of an IQM Radiance 20-qubit system. This transaction ...
The paper presents a scheme to detect entanglement arising from the quantum nature of gravity between a spin qubit and photons, using Stokes parameter...
We analyze device-dependent correlation sets generated by fixed local dichotomic measurements for two-qubit systems in the $(2,m,2)$ Bell scenario. We...
Noise in contemporary quantum hardware is highly non-uniform across qubits and couplers, giving rise to localized low-noise "islands" within otherwise...
Insider Brief PRESS RELEASE — IQM Quantum Computers, the global leader in superconducting quantum computers, today announced the purchase of its full-...
Configuring variational quantum algorithms for combinatorial optimization remains a difficult, expert-driven process requiring coordinated choices ove...
We propose a gate-based quantum algorithm for the prediction step of Bayesian state estimation based on the Fokker-Planck equation on a discretized po...
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 obt...
Scalable quantum computing is fundamentally bottlenecked not by qubit count or fabrication yield, but by a rigid temporal mismatch: macroscopic classi...
Yuval Boger interviews Tom Darras, CEO and co-founder of Welinq. They discuss how quantum networking uses shared entanglement to interconnect quantum ...
Symmetry-resolved spectroscopies, such as angle-resolved photoemission spectroscopy and polarization-resolved Raman, are central for quantum material ...
Near-term hardware is constrained by high error rates, small qubit counts, and relatively low output fidelity, making the execution of large, high per...
Proposed experiments for gravitationally induced entanglement (GIE) typically suppress direct electromagnetic interactions between two massive particl...
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...
By Mohamed Abdel-Kareem Quantum hardware is transitioning from academic fabrication to industrial manufacturing. Semiconductor standardized, and there...
Future quantum architectures are expected to be modular, with quantum processors connecting multiple quantum processing units (QPUs) via photonic inte...
Entanglement has been proposed as a means to improve the sensitivity of sensing weak signals. While the degree of this quantum advantage is well under...
Hybrid quantum optimization for vehicle routing faces a practical bottleneck: direct QUBO encodings of CVRP quickly exceed near-term qubit and gate bu...
Semiconductor spin qubits are a promising candidate for the building blocks of next-generation quantum computers due to their high potential for integ...
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 m...
Measurement-only circuits provide a minimal setting in which repeated local projections can either generate or suppress many-body entanglement, giving...
We study random entanglement percolation in heterogeneous quantum networks, where the singlet-conversion probabilities (SCPs) of the edges are drawn f...
Quantum resources such as entanglement form the backbone of quantum technologies and their efficient generation is a central objective of modern quant...
Peaked quantum circuits, whose output distribution is sharply concentrated on a single bitstring, have emerged as a promising candidate for verifiable...
Quantum networks are a keystone of the quantum internet. However, existing implementations remain largely confined to static point-to-point links due ...
We investigate the limits of quantum error correction (QEC) in neutral-atom processors approaching high-fidelity gates and fast cycle times. We show t...
Execution of quantum algorithms on large-scale quantum computers will require extremely low logical error rates, which necessitates the development of...
Quantum computers, devices that process information leveraging quantum mechanical effects, could tackle some tasks that are difficult or impossible to...
Bosonic quantum error correction enables hardware-efficient protection of quantum information by encoding logical qubits in harmonic oscillators. Boso...
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 theo...
High-quality photonic Bell state measurements (BSMs) enable scalable universal quantum computing and long distance quantum communication. However, whe...
Quantum technologies in the terahertz (THz) require a coherent interface between addressable qubits and THz quantum channels -- a capacity that so far...
Modular quantum computing architectures require error correction schemes that remain effective in the presence of noisy inter-processor operations. As...
We describe the design, implementation, and nine-month operational experience of the software management stack for Lagrange, an IQM Spark five-qubit s...
The creation of high-quality cluster states in superconducting microwave circuits is a relevant ingredient in continuous-variable quantum computing. A...
Insider Brief PRESS RELEASE — Quantum Computing Inc. (“QCi” or the “Company”) (NASDAQ: QUBT) an innovative, quantum optics and integrated photonics te...
We present a new software package for efficient quantum circuit generation, designed to achieve optimal runtime performance. Despite being in an early...
Insider Brief PRESS RELEASE — Q-CTRL, the global leader in quantum infrastructure software, and IonQ, the world’s leading quantum platform company, to...
High-fidelity control of superconducting qubits requires carefully shaped microwave pulses that account for multiple error channels. In this work, we ...
Photonic quantum computing provides a promising route toward quantum computation by naturally supporting the measurement-based quantum computation (MB...
We investigate the reduced dynamics of two identical superconducting qubits capacitively coupled through a finite-length transmission line. Starting f...
Insider Brief A team of researchers at IonQ has published a technical blueprint for a fault-tolerant quantum computer built on trapped ions, describin...
We investigate optimized vertical ion-shuttling protocols for trapped-ion applications across a range of ion-trap experiments, including three-dimensi...
Magnetic quantum sensors based on trapped ions utilize properties of quantum mechanics which have optimized precision and beat current limits in senso...
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...
As quantum hardware scales toward fault tolerant operation, the demand for correct quantum error correction (QEC) circuits far outpaces manual design ...
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 qua...
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Meta Description: IonQ sets a new industry standard with a full-stack technical report detailing the path to 10,000+ qubits and scalable, error-correc...
Dissipatively stabilized cat qubits are promising for fault-tolerant quantum information processing, yet their non-Hermitian (NH) spectral topology re...
Optimization problems become fundamentally challenging as the number of variables increases. Because the volume of the search space grows exponentiall...
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,...
Accurate state-of-health (SOH) estimation for lithium-ion batteries remains a challenging problem due to complex electrochemical degradation mechanism...
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 fo...
We adopt a two-dimensional tensor-network (TN) ansatz to simulate variational quantum algorithms on two-dimensional qubit architectures, demonstrating...
Los Angeles-based startup Quantum Elements has announced a research collaboration with Rigetti Computing to evaluate the use of AI-native digital twin...
Infleqtion has secured a $2 million contract from the Defense Advanced Research Projects Agency (DARPA) to support the Heterogeneous Architectures for...
Recent advancements in neutral atom platforms have enabled exploration of early fault-tolerant (FT) architectures for applications with quantum advant...
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 t...
Quantum Signal Processing (QSP) and Quantum Singular Value Transformation (QSVT) provide an efficient framework for implementing polynomials of block-...
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 introd...
Insider Brief PRESS RELEASE — PINQ² (Digital and Quantum Innovation Platform) today announced it has become the exclusive Canadian distributor of Pasq...
We propose a fault-tolerant quantum computer architecture for trapped-ion devices, which we call the walking cat architecture. Our blueprint includes ...
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 m...
We introduce and empirically validate Landscape Span Compression (LSC), a device-agnostic metric for quantifying how hardware noise distorts the varia...
Magnetic domain walls have long been pursued as carriers of classical information for storage and processing. With the ability to create, control, and...
As quantum computing matures into a practical paradigm, the need for secure and private quantum computation on untrusted hardware becomes increasingly...
Insider Brief PRESS RELEASE — Orange Quantum Systems (OrangeQS), an industry leader in quantum chip testing has announced the second closing of its se...
Hybrid continuous-variable--discrete-variable (CV--DV) architectures process quantum information in bosonic modes and qubits, but noise limits their p...
Wave--particle duality demonstrates the peculiar nature of quantum mechanics. In which-way experiments, depending on the measurement scheme, a particl...
The fate of non-trivial many-body states subject to decoherence is of both fundamental and practical interest. Here, we demonstrate a new analytic tec...
Standard quantum error correction (QEC) models typically assume discrete, Markovian noise, obscuring the continuous quantum nature of physical environ...
A research collaboration between QuEra Computing, Harvard University, and MIT has reported a quantum error correction (QEC) result demonstrating a phy...
Superconducting qubits—bits of quantum information—have been widely considered a promising technology for moving quantum computing forward. But there'...
We simulate a long-range extended Ising model in one dimension using a hybrid quantum algorithm, namely Variational Quantum Eigensolver (VQE). In this...
Integrated photonics is widely regarded as a key enabler for scalable quantum key distribution (QKD), offering compactness, stability, and compatibili...
We propose a broadband Purcell-protection scheme based on a single shared filter integrated directly into the feedline, enabling simultaneous protecti...
The limited number of qubits is a major bottleneck in Quantum Approximate Optimization Algorithm (QAOA) for large-scale combinatorial optimization in ...
Superconducting qubits, realized by incorporating Josephson junctions into superconducting circuits, behave as artificial atoms with anharmonic energy...
Microwave photon detection is a key technology for low-temperature superconducting electronics and quantum information processing. A promising possibi...
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 ...
We establish a quantitative relation between local spin polarization and quantum entanglement in two-qubit systems by deriving an upper bound on the c...
The long-range transmission of quantum information relies on multiple interfaces between photons, acting as flying qubits, and localized memories, ser...
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 h...
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-qubi...
Erasure qubits are a promising platform for implementing hardware-efficient quantum error correction. Realizing the error-correction advantages of thi...
Engineering large-scale quantum computers which simultaneously provide high-fidelity quantum operations, low memory errors, low crosstalk, and reasona...
Commercially-relevant quantum computers will require large numbers of high-performing qubits that can be manufactured, integrated, and controlled at s...
Quantum error correction is widely believed to be essential for large-scale quantum computation, but the required qubit overhead remains a central cha...
Quantum coherence plays a pivotal role in quantum algorithms. We study the coherence dynamics of the evolved states in Simon's quantum algorithm based...
Quantum protocols require classical signaling, and when classical signals propagate faster than quantum ones, standard rate-loss limits can be surpass...
Nonlinear spectroscopy is a cornerstone of quantum science, providing unique access to multi-point correlations, quantum coherence, and couplings that...
Insider Brief PRESS RELEASE — At the Quantum Defence Summit, OVHcloud, a global cloud player and the European cloud leader established in Canada since...
We develop an intrinsic enumerator framework for quantum error correction in unitary representations of symmetry groups. An intrinsic quantum code is ...
Quantum technologies promise a radically new way to solve classically intractable computing problems. Superconducting circuits as a platform are at th...
French quantum startup C12 has released its official product roadmap, outlining a decade-long path toward a utility-scale, fault-tolerant quantum comp...
Insider Brief PRESS RELEASE –C12, a Paris-based quantum computing company developing processors based on carbon nanotube spin qubits, today unveiled i...
We present two general methods to implement quantum circuits for the direct measuring of local unitary invariants on quantum computers. We work these ...
Flux-tunable superconducting qubits rely on fast flux control pulses to implement two-qubit entangling quantum gates, a key building block for quantum...
Insider Brief PRESS RELEASE — An international research team led by Qclairvoyance Quantum Labs has demonstrated chemically accurate quantum simulation...
To study generator design for parameterized unitaries in quantum machine learning (QML), we propose an observable-guided generator selection algorithm...
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 ...
The impossibility of simultaneously cloning non-orthogonal states lies at the foundations of quantum theory. Even when allowing for approximation erro...
Photonic architectures are one of the leading platforms for demonstrating quantum computational advantage, with Boson Sampling and Gaussian Boson Samp...
We investigate the generation of quantum states for precision metrology in noisy two-level systems. These states are obtained by optimizing a variatio...
The spin-off company ParityQC has implemented the largest quantum Fourier transform ever reported using an IBM quantum computer, thereby setting a new...
The classical simulation of universal quantum circuits is crucial both fundamentally and practically for quantum computation. We propose SyQMA, a simu...
The certification of quantum systems is essential for emerging quantum technologies, particularly in quantum communication, networks, and distributed ...
Levitated mesoscopic particles hold the promise of revolutionizing gravity sensing by using quantum effects. However, conventional quantum gravimeters...
Concatenating quantum error correction codes scales error correction capability by driving logical error rates down double-exponentially across levels...
We present a hardware demonstration and resource analysis of split-evolution quantum phase estimation (SE-QPE) on a Quantinuum System Model H2 quantum...
Insider Brief PRESS RELEASE — The European quantum architecture company ParityQC today announced a new record benchmark implementation of the largest ...
ParityQC, a European quantum architecture company, has announced a performance benchmark for the Quantum Fourier Transform (QFT), a foundational algor...
We introduce a general witness-based framework for quantifying and operationally activating continuous-variable (CV) resources into discrete-variable ...
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 ...
Matrix models are an important class of systems in string theory and theoretical physics, with applications to random matrix theory, quantum chaos, an...
Insider Brief Peak Quantum, a Munich-based quantum computing startup, has completed a €2.2 million pre-seed funding round, bringing its total financin...
Recently, Dunjko et al.(PRL, 2018) proposed an algorithm for accelerating the solution of 3-satisfiability problems using a small-scale quantum comput...
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 $\m...
The storage of quantum information in spin-ensembles is limited by practically unavoidable inhomogeneous broadening, and the macroscopic number of spi...
We propose Scalable Quantum Molecular Generation (SQMG), a variational quantum-circuit for sampling molecular graphs using chemical priors on atoms an...
The strong dipole-dipole interaction of trapped Rydberg ions offers the possibility of sub-microsecond entanglement gates. For example a two-qubit Con...
Quantum circuit optimization is a central task in Quantum Computing, as current Noisy Intermediate Scale Quantum devices suffer from error propagation...
Spin shuttling has crystalized as a powerful and promising tool for establishing intermediate-range connectivity in semiconductor spin-qubit devices. ...
Spin qubits have emerged as a leading platform for quantum information processing due to their long coherence times, small footprint, and compatibilit...
Superconducting microwave quantum networks is a rapidly developing field, enabling distributed quantum computing and holding a promise for hybrid arch...
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 computi...
We propose and analyze an experimentally accessible Lindblad master equation for a quantum harmonic oscillator, simplifying a previous proposal to all...
Variational quantum algorithms on bosonic quantum processors are an emerging paradigm for quantum chemistry calculations, exploiting the natural align...
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 b...
memQ has been selected by the Defense Advanced Research Projects Agency (DARPA) to develop a hardware- and network-aware quantum compiler under the He...
IonQ (NYSE: IONQ) has secured a contract with the Defense Advanced Research Projects Agency (DARPA) as part of the Heterogeneous Architectures for Qua...
Discover how IonQ is leveraging synthetic diamond quantum memories to link trapped ions, neutral atoms, and superconducting qubits in DARPA’s new HARQ...
IonQ successfully links two remote quantum systems via photonic interconnects. Discover how this AFRL-backed milestone paves the way for scalable, net...
Insider Brief PRESS RELEASE — Lucy, inaugurated today by the Minister Delegate for Artificial Intelligence and Digital Affairs, Anne Le Hénanff, is th...
NVIDIA has announced the release of NVIDIA Ising, the world’s first family of open-source AI models specifically designed to address the engineering b...
Insider Brief PRESS RELEASE — DARPA has launched the Heterogeneous Architectures for Quantum (HARQ) program, an effort aimed at overcoming one of the ...
The role of complex numbers in quantum theory extends beyond mathematical convenience, having recently been formalized as a resource under the framewo...
Insider Brief PRESS RELEASE — NVIDIA today announced the world’s first family of open source quantum AI models, NVIDIA Ising, designed to help researc...
Decoherence and dissipation, arising from unavoidable interactions with the environment, can exert a dual influence on transport in physical systems, ...
Instantaneous Quantum Polynomial-time (IQP) circuits are a candidate for demonstrating near-term quantum advantage, as their sampling task is believed...
We demonstrate the Parity Architecture on quantum hardware, using the quantum Fourier transform (QFT) as a benchmark. As a result, a record performanc...
Model-independent estimation of the properties of quantum states is a central challenge in quantum technologies, as experimental imperfections, drifts...
We present a quantum optimization framework for the Shipment Selection Problem (SSP) in electric freight logistics, developed jointly by IonQ and Einr...
The speed and fidelity of dispersive readout of superconducting qubits should improve by increasing the amplitude of the measurement drive. Experiment...
Measurement-based quantum computation (MBQC) is a framework for quantum information processing in which a computational task is carried out through on...
Concept from theoretical physics could reduce qubit requirements The post Gauge theory could give quantum error correction a boost appeared first on P...
We present a hardware-validated reference dataset for variational ground-state energy calculations of the hydrogen molecule H\(_2\) on several IBM Qua...
Device-independent quantum key distribution (DI-QKD) provides the highest level of cryptographic security by certifying secrecy through observed Bell ...
Quantum computing is increasingly offering concrete solutions toward the simulation of nuclear structure, with the potential to overcome the exponenti...
Superconducting quantum computing is advancing toward the thousand- and even million-qubit regime, making wafer-scale fabrication an essential pathway...
Color centers associated with group-IV dopants in diamond with long-lived nuclear spins have emerged as major candidates for distributed quantum compu...
We propose a novel measurement-free scheme for stabilizing a spin-oscillator hybrid qubit via autonomous quantum error correction. The engineered Lind...
Most quantum machine learning (QML) pipelines still rely on static encodings such as angle and amplitude maps, and this limits their ability to handle...
The quantum computing community is increasingly positioning quantum processors as accelerators within classical HPC workflows, analogous to GPUs and T...
We present a directional-transport (DT)-based remote CZ gate and compiler for zoned neutral-atom arrays that overcomes movement-bound entanglement lim...
Guest Post by Jim McMahon Superconducting qubits, which are used in quantum computers, are extremely sensitive to external influence. They need to be ...
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 Experimen...
Insider Brief PRESS RELEASE — IQM Quantum Computers, a global leader in superconducting quantum computing, and the Capital of Quantum (CoQ) announced ...
Overview of Q-NEXUS: a heterogeneous architecture made of specialized functional modules connected through an interconnect bus Q-CTRL has introduced Q...
Horizon Quantum Holdings Ltd. (Nasdaq: HQ) and IonQ (NYSE: IONQ) have announced a strategic agreement for the purchase of a 6th-generation, chip-based...
The Gottesman-Kitaev-Preskill (GKP) code is a promising bosonic candidate for realizing fault-tolerant quantum computation. Among existing error-corre...
Insider Brief PRESS RELEASE — Horizon Quantum Holdings Ltd. (“Horizon Quantum”), a pioneer of software infrastructure for quantum applications and Ion...
We develop a theoretical description of quantum wave mixing (QWM) in a cascaded waveguide-QED system of two superconducting qubits, where the probe is...
Quantum systems are inherently fragile to environmental fluctuations or decoherence, limiting their advantages in applications of quantum information ...
Programmable neutral-atom arrays offer a promising route toward scalable quantum computing, where coherent qubit transfer enables non-local connectivi...
Deploying quantum machine learning algorithms on near-term quantum hardware requires circuits that respect device-specific gate sets, connectivity con...
Noise is a major challenge in quantum computing, affecting the reliability of quantum protocols. In this work, we analytically study the impact of var...
Broadly applicable quantum advantage, particularly in classical data processing and machine learning, has been a fundamental open problem. In this wor...
A foundational result in relativistic quantum information theory due to Peres, Scudo, and Terno, is that von Neumann entropy is not Lorentz invariant....
In dense neutrino gases, which exist for instance in supernovae, the flavour states of different neutrinos may become entangled with one another. The ...
We extend the SeQUeNCe discrete-event simulator with physics-based models for polarization-encoded photonic quantum networks. Our framework integrates...
The deterministic generation and SWAP of Fock states in isolated high-Q modes form a core foundation for architectures in bosonic quantum computing. C...
The Quantum Approximate Optimization Algorithm (QAOA) is a leading framework for quantum combinatorial optimization. The Vehicle Routing Problem (VRP)...
QBoson, a Beijing-based developer of photonic quantum hardware, has closed a Series B funding round totaling CNY 1 billion ($145 million). The capital...
The computational complexity of $\mathsf{QAC}^0$, which are constant-depth, polynomial-size quantum circuit families consisting of arbitrary single-qu...
Implementing high-fidelity controlled two-qubit gates in dipole-dipole interacting systems, such as rare-earth-ion crystals, in hindered by spectral i...
We demonstrate complete coherent control of a single spin qubit confined in a self-assembled InAs negatively charged quantum dot subjected to an Obliq...
Designing quantum neural networks (QNNs) that are both accurate and deployable on NISQ hardware is challenging. Handcrafted ansatze must balance expre...
Insider Brief PRESS RELEASE — Rigetti Computing, Inc. (Nasdaq: RGTI) (“Rigetti” or the “Company”), a pioneer in full-stack quantum-classical computing...
We propose a hardware efficient quantum residual neural network which implements residual connections through a deterministic linear combination of id...
Quantum computing simulators form the classical software foundation on which virtually all quantum algorithm research depends. We present Broken Quant...
Optical loss is a common bottleneck in photonic quantum information processing, undermining the quantum advantage over classical approaches. Although ...
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 direc...
Robust continuous-variable (CV) quantum information processing requires correcting realistic errors in bosonic systems, but all existing schemes rely ...
Rigetti Computing has announced the general availability of its Cepheus-1-108Q quantum computing system. The 108-qubit processor is accessible via the...
The field of high-dimensional quantum photonics involves the use of multimode photonic degrees-of-freedom such as the spatial, temporal, or spectral s...
Quantum operations on pure states can be fully represented by unitary matrices. Variational quantum circuits, also known as quantum neural networks, e...
IQM Quantum Computers has entered into a commercial agreement with Galaxy Systemy Informatyczne for the on-premises delivery of an IQM Radiance 54-qub...
Assembling genomes from short-read sequencing data remains difficult in repetitive regions, where reference bias and combinatorial complexity limit ex...
While recent advances have established efficient quantum algorithms for preparing Gibbs states of finite-dimensional systems, comparable complexity re...
Due to rising electricity demand, accurate short-term load forecasting is increasingly important for grid stability and efficient energy management, p...
Hybrid quantum neural networks are increasingly explored for classification, yet it remains unclear how their performance and quantum behavior scale w...
Entanglement is a key quantity for characterizing quantum correlations in particle scattering processes, but its direct evaluation is computationally ...
We introduce a framework for distributed quantum inference under communication constraints. In our model, $m$ distributed nodes each receive one copy ...
Insider Brief PRESS RELEASE — IQM Quantum Computers, a global leader in superconducting quantum computing, today announced a commercial milestone to d...
Quantum error correction is a crucial technology for fault tolerant quantum computing. On superconducting platforms, hardware defects in large scale q...
Dynamical decoupling is a long-established and effective way to suppress unwanted interactions in qubit systems, enabling advances in fields ranging f...
Consider a rectangular grid of qubits in 2D with single-qubit and nearest-neighbor two-qubit operations subject to local stochastic Pauli noise. At di...
Mid-circuit measurements are one of the biggest practical hurdles in quantum error correction on encoded qubits. Researchers in Innsbruck and Aachen h...
The development of large-scale superconducting quantum computing requires efficient in-situ control methods that allow high-fidelity operations at mil...
We propose a quantum machine learning framework for estimating classical covariance matrices using parameterized quantum circuits within the Pauli-Cor...
When it comes to discriminating between two quantum states, trace distance is one of the well-known metrics used in quantum computation and quantum in...
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 oft...
Quantum phase estimation~(QPE) is central to numerous quantum algorithms, yet its standard implementation demands an $\calO(m^{2})$-gate quantum Fouri...
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...
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...
Large-scale classical simulation of IQPE quantum circuits demonstrated in this work. Larger qubit counts and more Hamiltonian terms result in deeper c...
Rigetti Computing (Nasdaq: RGTI) has officially expanded its on-premises footprint with the sale of a 9-qubit Novera™ QPU to the University of Saskatc...
Fault-tolerant quantum computing requires quantum error correction (QEC): Encoding one logical qubit into many physical qubits so that, below a thresh...
A University of Sydney quantum physicist has developed a new approach to quantum error correction that could significantly reduce the number of physic...
Portable device could find applications in quantum computing and optical clocks The post Trapped ion quantum technology gets smaller appeared first on...
Quantum computers of the future may be closer to reality thanks to new research from Caltech and Oratomic, a Caltech-linked start-up company. Theorist...
Silicon is ubiquitous in modern electronics, and now it is becoming increasingly useful in quantum computing. In particular, silicon's compatibility w...
Google Quantum AI has announced a major strategic expansion of its research roadmap, adding neutral atom quantum computing to its established supercon...
Insider Brief Google Quantum AI, which was a pioneer in the superconducting approach to quantum computing, announced that it is expanding beyond that ...
We introduce the Adaptive Derivative-Assembled Pseudo-Trotter ansatz Variational Majorana Propagation Eigensolver (ADAPT-VMPE), a quantum-inspired cla...
Motzkin spin chain is a well-known mathematical model with connections to symmetry-protected topological phases, such as the Haldane phase, as well as...
Insider Brief PRESS RELEASE — The National Reconstruction Fund Corporation (NRFC) has invested AUD$20 million in Silicon Quantum Computing (SQC), a gl...
We introduce the concept of quantum actuators as mediators for globally controlled quantum computation. Auxiliary quantum systems act as controllable ...
Insider Brief Quantum hardware is beginning to show measurable gains on real financial problems, with larger qubit systems delivering better portfolio...
Insider Brief Photonic quantum computing uses photons instead of matter-based qubits, offering room-temperature operation, fiber-network compatibility...
We introduce STAR-magic mutation, an efficient protocol for implementing logical rotation gates on early fault-tolerant quantum computers. This protoc...
Entangled quantum probes can achieve Heisenberg-limited measurement precision, but this advantage is typically destroyed by noise. We address this iss...
Quantum simulation of molecular electronic structure is one of the most promising applications of quantum computing. However, achieving chemically acc...
Enhancement of quantum battery performance is a popular subject in quantum thermodynamics. An interesting phenomenon is the quick charging effect [Phy...
For strings of letters from a small alphabet, such as DNA sequences, we present a quantum encoding that empirically provides a strong correlation betw...
Quantum computers have the potential to solve certain complex problems in a much more efficient way than classical computers. Nevertheless, current qu...
Quantum simulations before fault tolerance suffer from the intrinsic noise present in quantum computers. In this regime, extracting meaningful results...
Large optical coherent-state superpositions are essential to advance quantum sensing, quantum repeaters and error-correction codes. We propose a deter...
We demonstrate violation of objective realism in quantum world using unconstrained weak measurements. Instead of limited Leggett-Garg approach with ar...
Quantum-correlated networks distribute quantum resources such as squeezed and entangled states. These states are central to modern quantum technology,...
Theoretical analysis of a prototypical two-qubit effective non-Hermitian system characterized by asymmetric Heisenberg $XY$ interactions in the absenc...
Quantum computers, computing systems that process information using quantum mechanical effects, could outperform classical computers on some computati...
Satellite based quantum key distribution (QKD) aims to establish secure key exchange over long distances despite significant technological challenges....
In the absence of error correction, noisy intermediate-scale quantum devices are operated by training parametrized quantum circuits (PQCs) so as to mi...
Quantum machine learning models generally lack principled design guidelines, often requiring full resource-intensive training across numerous choices ...
Quantum error correction (QEC) is critical for scalable fault-tolerant quantum computing. Topological codes, such as the toric code, offer hardware-ef...
Reliable quantum memory is essential for scalable quantum networks and fault-tolerant photonic quantum computing. We present a quantitative analysis o...
The potential of quantum computing is fundamentally constrained by the inherent susceptibility of qubits to noise and crosstalk, particularly during m...
In continuous-variable quantum computing, autonomous quantum error correction (QEC) can dissipatively steer a noisy quantum state into a target state ...
Quantum Neural Networks (QNNs) are a promising class of quantum machine learning models with potential quantum advantages when implemented on scalable...
Fixed-frequency transmon qubits, characterized by simple architectures and long coherence times, are promising platforms for large-scale quantum compu...
SEEQC has published a study in Nature Electronics documenting the operation of a full-stack quantum computing system with integrated digital supercond...
Insider Brief PRESS RELEASE — SEEQC today announced a significant breakthrough in the development of scalable, chip-based quantum computers, with resu...