221 curated articles
By remotely accessing an IBM quantum computer, a research scientist at Lawrence Berkeley National Laboratory has successfully simulated a key process in particle physics: hadronization. Although based...
Silicon spin qubits are promising for large-scale quantum-computer integration because they can fully leverage the well-developed semiconductor infrastructure. However, the low fidelity of two-qubit e...
Entanglement distributed over a set of individually addressable qubit nodes is the enabling resource for a plethora of applications ranging from tests of quantum physics to secure and modular quantum ...
We present a quantum-information-theoretic study of three-flavor neutrino oscillations in long-baseline experiments by mapping flavor states to qubit-like representations and quantifying quantum corre...
Standard quantum verification and certification protocols often assume that experimental sources emit independent and identically distributed (i.i.d.) states. In realistic scenarios, however, temporal...
Quantum sensors that harness quantum coherence and entanglement are emerging as powerful tools in many fields, including particle physics, promising unprecedented sensitivity beyond classical detectio...
We investigate the generation of uniform quantum state ensembles via continuous measurement. Using the $SU(d)$ Bloch representation, we derive the associated Langevin and Fokker-Planck equations and i...
Neutral atom quantum computing offers strong scalability and flexible qubit connectivity, but most existing compilation flows rely on reconfigurable atom arrays that physically shuttle qubit atoms dur...
Quantum information scrambling, the dispersal of local information into many-body degrees of freedom, provides a powerful mechanism for generating large-scale correlations and entanglement essential f...
The gate and qubit requirements of quantum computations of electronic structure have been extensively studied. However, the quantum resources present in electronic ground states, as measured by entang...
Insider Brief PRESS RELEASE — Governments, financial institutions, and blockchain networks worldwide are racing to prepare for a future where quantum computation could break today’s cryptographic stan...
Insider Brief PRESS RELEASE — QuiX Quantum today released its vision of universal photonic quantum computing with logical qubits through Dedalo, the company’s new system architecture designed to achie...
Insider Brief Press release – Quantum X Labs Ltd. (Nasdaq: QXL) today announced the appointment of Dr. Ira Wolfson to its leadership team as a quantum researcher, strengthening the Company’s scientifi...
Insider Brief Press release – Crédit Agricole CIB, the financing and investment banking arm of Crédit Agricole Group, and Pasqal, a global leader in neutral atom quantum computing, announced the signi...
Insider Brief Press release – D-Wave Quantum Inc. (NYSE: QBTS), (“D-Wave” or the “Company”), the only dual-platform quantum computing company providing both annealing and gate-model systems, software ...
As Quantum Machine Learning (QML) transitions toward practical implementation, the field faces a critical architectural bottleneck that challenges the fundamental assumptions of classical statistical ...
Practical hardware limitations, including finite transmitter and receiver filter lengths as well as the finite resolution of digital-to-analog and analog-to-digital converters, lead to mode mismatch a...
Insider Brief Press release – SpinQ, a leading quantum computing company in China, has completed a RMB 1 billion Series D financing round, bringing its total funding raised over the past six months to...
We introduce a unified, computable measure of multipartite entanglement based on the spectral properties of an entanglement graph and its associated entanglement matrix. This framework quantifies quan...
In both classical and quantum error correction, heralded erasures are known to be easier to tolerate than unheralded general stochastic errors. Whilst an established benefit of loss-dominant quantum a...
We introduce a hybrid approach utilising a quantum machine learning surrogate model to approximate the non-linear collision dynamics of the LBM. It effectively offloads the non-unitary operations that...
Superconducting qubits are a leading platform for quantum computing. However, simultaneously achieving low noise sensitivity to suppress decoherence and sufficient anharmonicity to enable fast gate op...
Executive Summary France’s quantum sector moved further into a deployment-focused phase in June 2026, with policy, infrastructure and commercial activity increasingly tied to national security, high-p...
Insider Brief South Korea will make quantum technologies one of the country’s core national research priorities under a five-year science and technology plan that commits more than 200 trillion won to...
We study Bell-mixing lines $ρ_λ=λΦ^+ +(1-λ)σ$, where $Φ^+$ is a fixed Bell reference and $σ$ is a separable two-qubit noise state. Along this line there are two operational crossings: the state become...
Telecommunications giant China Telecom Quantum Group has officially brought the Tianyan-P2000 photonic quantum computer into formal production operation. Connected directly to the company's public Tia...
A quantum circuit demonstrating the structure of a singular spacetime Pauli check. The ancilla is represented by the purple qubit/top wire, and four target/payload qubits are represented in blue. IBM ...
The Presidency of the Republic of Türkiye, Secretariat of Defence Industries (SSB) has officially unveiled the SSB Quantum Program, establishing a comprehensive, sovereign roadmap designed to cement t...
But the system would require a massive leap from any of its existing hardware.
In this review, we survey the cryptographic task of authentication from the perspective of quantum communication. We review three main flavours of authentication that are often conflated in the litera...
Non-Clifford gates are a necessary resource for universal quantum computation, yet their fault-tolerant implementation typically relies on magic-state distillation, which incurs significant overhead i...
Readout errors are one of the dominant sources of noise in current quantum processors, limiting both expectation-value estimation and sampling-based applications. Since they affect only the classical ...
Remarkable technical progress has made high-rate, high-distance, quantum low-density parity-check codes (QLDPC) promising candidates for scalable quantum computing. However, it is hard to design low-d...
Calculation of binding energies for protein-ligand molecular systems requires accurate treatment of the electronic structure, a quantum chemistry problem that scales exponentially on classical hardwar...
Measurement-based quantum computing is a universal model of quantum computation in which successive product measurements of an entangled resource state drive the computation. The non-deterministic nat...
We report on the first experimental verification of mode-independent entanglement. Commonly, the entanglement of a state is firmly based on pre-defined parties that are correlated, and the state might...
Quantum entanglement is one of the most intriguing features of quantum mechanics. To investigate the entanglement between two excitons in a biexciton, an experimental technique called density matrix s...
Over the past decades, the operations research community has developed numerous effective optimization algorithms, yet quantum computing is emerging as a new computational paradigm with the potential ...
The universal scaling of critical behavior in phase transitions is a cornerstone of physics. Dynamical quantum phase transitions (DQPTs) are their nonequilibrium analogues: abrupt nonanalyticities tha...
Fault-tolerant quantum computing requires architectures that simultaneously address scalability, connectivity, and error correction under realistic noise constraints. We present a compound photonic-at...
Insider Brief Press release – Pasqal, a global leader in neutral-atom quantum computing, today announced the appointment of Stéphane Rougeot as Chief Financial Officer (CFO). Rougeot — a finance leade...
Decoherence is the biggest bottleneck in all quantum technologies. For nitrogen-vacancy (NV) centers in diamond, the loss of coherence is caused by the electron and nuclear spin bath of the diamond la...
We propose a framework for the direct generation of flying cat-qubit states from vacuum using time-dependent two-photon drives in nonlinear bosonic systems. We study both Kerr-based and two-photon-dis...
Insider Brief Future quantum networks will depend on reliable handshakes between two very different carriers of quantum information: solid-state qubits that can store and process information, and phot...
The ability of bosonic energy quanta to bunch together in an energy-conserving interaction is a fundamental feature of quantum harmonic oscillators. Linear systems together with measurement allow for ...
The University of Tennessee at Chattanooga signals its quantum ambitions The post UTC Quantum Center: collaboration turns quantum discovery into quantum impact appeared first on Physics World .
Quantum computing provides a powerful paradigm for representing and transforming high-dimensional information through superposition, entanglement, and measurement-induced nonlinear features. While cur...
Universal blind quantum computation (UBQC) hides a client's computation by using a computation-independent BFK09 brickwork graph and encoding the computation in measurement angles, which limits the us...
Insider Brief Türkiye has set out a detailed plan for entering the global quantum race, publishing a national roadmap that names 85 specific technologies the country intends to pursue across the three...
By Doug Finke Ever since the White House released the new Executive Orders on quantum technology a few days ago, we have received numerous comments on them. If you haven’t already seen them, you can v...
Photonic quantum processing unit for quantum and classical machine learning tasks. A collaborative research group consisting of quantum information scientists from Quandela, the Center for Theoretical...
Photonic quantum computing developer Quandela and Qatar-based technology conglomerate Mekdam Holding Group (QSE: MKDM) have signed a comprehensive Memorandum of Understanding (MoU) to accelerate the d...
Bosonic hardware developer Alice & Bob has published a computer architecture blueprint authored by senior architect Kevin D. Kissell detailing a new "decoupled" processing methodology for runtime arti...
Neutral-atom quantum hardware developer Pasqal has published a comprehensive architectural roadmap detailing the deployment and operational integration of its quantum processing units (QPUs) within hi...
Advanced technological holding company Quantum X Labs Inc. (Nasdaq: QXL) has announced the launch of an integrated quantum software development program. The dual-pronged initiative pairs the company’s...
Sovereign neutral-atom hardware developer Taiyi Quantum Technology Co., Ltd. (Shanghai)—alternatively known as Taiyi Liangsheng—has closed a heavily oversubscribed 300 million yuan ($44 million USD) s...
Early detection of oral cancer markedly improves clinical outcomes, yet specialized diagnostic tools remain scarce in low-resource settings. Smartphone-based screening is a scalable alternative but ne...
Parameterized Instantaneous Quantum Polynomial (IQP) circuits have proven useful in quantum generative learning models, particularly for binary distributions. However, when applied to non-binary datas...
We extend Noise-Directed Adaptive Remapping (NDAR), a recently proposed heuristic meta-algorithm that leverages device noise as a computational resource, to optimization problems over discrete (intege...
Variational excited-state quantum algorithms fail for reasons usually studied in isolation: barren plateaus, symmetry contamination, finite-sampling instability, and hardware cost. Using one small but...
We investigate extractable work storage in a capacitively coupled double quantum dot (DQD) quantum battery (QB) subjected to experimentally motivated detuning charge noise. The battery is modeled as t...
Insider Brief Quantum computing investment has moved through several distinct phases. The hype-driven cycle of 2018-2020, when capital flowed toward anything with “quantum” in the pitch, gave way to a...
We present a phenomenological study of quantum correlations in the decay of $B^0$ mesons into a system of two vector mesons. The decay of the $B^0$ meson into two vector mesons constitutes a bipartite...
Cavity optomechanical systems have emerged as a promising platform for quantum sensing. Quantum mechanics imposes a standard quantum limit (SQL) on the force-sensitivity for the standard homodyne phas...
Insider Brief Taiyi Quantum, based in Shanghai, announced the completion of a 300 million yuan — or about $44 million USD — Pre-A funding round, according to media and social media reports. The round ...
Hamiltonian dynamics have been widely implemented on noisy intermediate-scale quantum devices in recent years. In contrast, experimental demonstrations of Markovian quantum dynamics remain limited, be...
Quantum light detection and ranging (LiDAR) utilizes quantum entanglement and correlation to improve precision, noise resilience and covertness of target detection. Despite recent advances, the develo...
Insider Brief The University of Maryland is backing a new effort to use quantum computing and artificial intelligence to speed the search for better ways to detect and treat cancer. The project is one...
Dynamic Time Warping (DTW) is a cornerstone for time series classification, but its reliance on Euclidean distances fails to capture latent cross-channel correlations in complex multivariate data. We ...
Insider Brief PRESS RELEASE — A Yale-led project — aided by a national community of researchers — has reached the next step in its effort to develop the first large-scale, error-correcting quantum com...
Twin-field quantum key distribution (TF QKD) can overcome the fundamental rate loss limit of repeaterless quantum links, but its practical deployment has long been hindered by the requirement of globa...
Hybrid photonic quantum computers, combining stationary matter qubits and flying photonic qubits, offer an intrinsically networked and resource-efficient route to large-scale, error-corrected quantum ...
Modern quantum physics now enables control of quantum systems at the level of individual trajectories, opening a new frontier that links quantum information theory, quantum many-body physics, and quan...
Generative models have achieved remarkable success in data synthesis, though recent advances driven by increasing model scale have introduced challenges in computational cost and efficiency. Quantum m...
Achieving high-fidelity execution on noisy intermediate-scale quantum (NISQ) hardware requires careful selection of physical qubit layouts, as gate errors, readout errors, and coherence times vary acr...
We introduce a surface-code cultivation protocol for reusable logical catalyst states that implement exact fine dyadic phase gates $Z^{2^{-b}}$ by phase kickback. The catalyst is an eigenstate of a hi...
In this paper, we introduce a novel two-way quantum key distribution (QKD) protocol in which the sender (Alice) and receiver (Bob) employ one qubit of a maximally entangled Bell state as the quantum c...
Trapped-ion systems have emerged as a leading platform for scalable quantum information processing owing to their high-fidelity operations and long-range entangling capabilities. As the number of ions...
We propose a quantum computer architecture based on ions confined in optical tweezer arrays, combining the long coherence times of trapped-ion qubits with the reconfigurability and parallel operation ...
Insider Brief Press release – The Chattanooga Quantum Collaborative (CQC) has selected 18 professionals from 17 Tennessee employers to participate in the nation’s first quantum pre-apprenticeship, an ...
Insider Brief Press release – Qblox, a leading provider of scalable quantum control electronics, today announced a collaboration with HPE to advance hybrid classical-quantum computing. Through this co...
Insider Brief Press release – QuEra Computing today detailed the next phase of its fault-tolerant roadmap, including plans for a next-generation gigaquop-class quantum computer coming in 2028 to 2029,...
Quantum information science aims to harness different kinds of quantum resources to accomplish specific information-processing tasks. These resources also play an increasingly important role in addres...
Superconducting transmon processors represent a leading platform for large-scale quantum computing due to their high gate fidelities and scalability. However, conventional qubit-coupler-qubit (QCQ) ar...
Photonic integrated circuits offer a scalable and robust route toward quantum information technologies by consolidating photon sources and linear optical networks onto compact, wafer-manufacturable ch...
Insider Brief Press release – WISeKey International Holding Ltd. (“Wisekey”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity and trusted digital ecosystems, and its subsidiary SEALSQ Corp....
Graphs provide a natural language for relational data in chemistry, biology and optimisation. Graph neural networks (GNNs) have driven much of the recent progress in learning from such data through me...
We use a primordial Majorana field as a fermionic probe of quantum correlations during inflation. Working in a torsion-free FLRW spacetime, we derive the two-component Majorana mode equations in an ax...
Quantum neural networks have emerged as powerful models for approximating nonlinear functions. Yet their use in solving integro-differential equations (IDEs) and fractional integro-partial differentia...
Insider Brief Press release – AQSolotl and QuantrolOx today announced a strategic partnership to integrate quantum control hardware and automated machine learning software, in a move aimed at accelera...
Holonomic quantum computation offers a promising route to robust quantum gates, but decoherence remains a central obstacle in realistic implementations. Here we develop a nonadiabatic holonomic scheme...
We propose an array of the Ramsey-type interferometers using $N$ superposition states, $(|0\rangle+ |1\rangle)^{\otimes N}$, as a sensor to detect wave-like dark matter. After the exposure to the dark...
The Conversation by Domenico VicinanzaAssociate Professor of Intelligent Systems and Data Science, Anglia Ruskin University In a laboratory in Broomfield, Colorado, 98 atoms are suspended in mid-air, ...
SPRIND (the German Federal Agency for Breakthrough Innovations) has launched the Quantum Sensing Initiative, a long-term strategic framework to accelerate the development, market integration, and scal...
QuEra Computing Inc. has released its updated product roadmap during a strategic webinar briefing, detailing the transition timelines from Noisy Intermediate-Scale Quantum (NISQ) systems to error-corr...
Cavity-assisted photon scattering (CAPS) is a powerful mechanism for realizing strong interactions between the internal states of stationary qubits and flying photons, underpinning a broad range of hy...
Overview of transversal STAR architecture. QuEra Computing and Los Alamos National Laboratory have introduced a co-designed quantum computing architecture named transversal STAR (Space-Time Efficient ...
Semiconductor manufacturer STMicroelectronics has introduced the ST54M, a single-die secure mobile processor equipped with a hardware accelerator for Post-Quantum Cryptography (PQC). Designed for smar...
Software developer Classiq and innovation center Hatch have completed a computational chemistry proof-of-concept (PoC) to estimate molecular binding energy via Amazon Web Services (AWS) and Amazon Bra...
Classiq and technology company TEA TEK Group have announced a strategic partnership to establish a quantum computing hub in Naples, Italy. The facility is configured to operate as a center for quantum...
We investigate the algebraic structure underlying the Lindblad equation for finite-dimensional open quantum systems. By introducing a suitable operator representation of the Liouville superoperator, w...
Non-local quantum computation (NLQC) studies how two collaborating players can implement channels on distributed systems using a single simultaneous round of quantum communication and shared entanglem...
Device-independent quantum key distribution (DI-QKD) offers security with the smallest possible set of assumptions about the experimental setup. The challenge posed by its implementation could be tack...
Autoencoders transformed classical machine learning by solving the curse of dimensionality, enabling principled weight initialization and learning compact, structured representations. In this work, we...
Spatial light modulators (SLMs) have emerged as reconfigurable platforms for photonic quantum information processing, offering software-defined control over the orbital angular momentum (OAM) of light...
Realizing coherent quantum computation requires precise and robust manipulation of quantum systems through quantum control protocols. Most quantum control techniques rely on heuristic methods for desi...
States with negative Wigner functions form a fundamental class of nonclassical resource underlying quantum advantage. Here we develop a unified framework to detect Wigner negativity of arbitrary state...
Insider Brief PRESS RELEASE — Classiq, the leading quantum computing software company, and TEA TEK Group, an emerging force in Italy’s and Europe’s quantum landscape, today announced a landmark multi-...
Insider Brief Press release – The U.S. National Science Foundation has selected five new teams to design experimental quantum technologies, from networks that can ferry fragile quantum information acr...
From cosmology to quantum matter, metastable states often decay through the nucleation and growth of competing domains, with false vacuum decay providing the paradigmatic example of this process. Here...
Useful quantum algorithms require many coupled discrete design choices. We study LLM-driven evolutionary program synthesis -- a language model edits a program, an external verifier scores the result, ...
Insider Brief PRESS RELEASE — Bull, a leader in advanced computing and AI, and Alice & Bob, a leader in fault-tolerant quantum computing specialising in cat qubits, today announce the signature of a M...
This paper proposes a candidate framework for free-space quantum key distribution (QKD) based on geometrical-configuration modulation (GM). In the minimal implementation considered here, Alice coheren...
We present the analytical generators for arbitrary multi-qubit controlled gates. Closed forms for the generating Hamiltonians are given for gates with both multiple control and target qubits, as well ...
Insider Brief PRESS RELEASE — Quantum Elements and USC today announced the publication of a new Quantum Monte Carlo algorithm in Physical Review Letters, providing a more efficient way to simulate noi...
High-dimensional spatially entangled two-photon state generated by spontaneous parametric down-conversion process (SPDC) has become a promising resource for several quantum information science applica...
Insider Brief PRESS RELEASE — QuantWare, the industrial quantum processor company, and Maybell Quantum, today announced a partnership to ensure Maybell’s ColdCloud cooling infrastructure is compatible...
Insider Brief PRESS RELEASE — Classiq and Hatch today announced the completion of a quantum-classical computational chemistry proof-of-concept (PoC), executed via Amazon Web Services (AWS) and Braket,...
The cavity-magnon-qubit system has recently been demonstrated as a new platform for preparing macroscopic quantum states in magnonic systems. Here, we propose to prepare a two-mode magnonic cat state,...
The Eclipse Qrisp developer community has integrated Eclipse Qrisp with the NVIDIA CUDA-Q platform for hybrid quantum-classical computing. Originally initiated by the Fraunhofer Institute for Open Com...
End-to-end QPE circuit with our custom MPS-to-circuit compiler to address state preparation. Silicon spin hardware developer Quantum Motion and computing platform NVIDIA have partnered to address the ...
Traditional cloud-style QPU access. Each iteration traverses cloud APIs, queues and schedulers before reaching the QPU. French photonic quantum computing developer Quandela has experimentally validate...
Quantum low-density parity-check (qLDPC) codes are promising candidates for realizing large-scale fault-tolerant quantum computing. Although many codes with favorable theoretical parameters have been ...
UK-based photonic quantum computing company Aegiq has unveiled a series of technical milestones that integrate artificial intelligence and tensor network mathematics into its hardware operations and h...
Quantum communication between two distant parties will serve as a cornerstone of the future quantum internet. However, generating enough entangled Bell pairs over long distances is a critical bottlene...
Multi-qubit systems are essential for scalable quantum technologies, but their performance is often limited by decoherence from qubit--qubit interactions and environmental noise. Although environmenta...
By Mohamed Abdel-Kareem Moving to standard CMOS wafer manufacturing is very helpful for certain modalities but not all. The real competitive advantages come from fabrication throughput—measured in waf...
UK-based photonic quantum computing developer Aegiq has opened its new corporate headquarters in Sheffield, establishing a localized center of excellence dedicated to scaling its full-stack quantum ha...
UK-based photonic quantum computing company Aegiq has secured a series of international research partnerships and industrial defense collaborations designed to transition its full-stack hardware platf...
Insider Brief PRESS RELEASE — The U.S. Department of Energy (DOE) today announced the establishment of the ambitious new Quantum Genesis initiative to develop and deploy the world’s first fault-tolera...
Measuring part of a quantum system in the midst of its evolution and acting on the result in real time is essential for numerous quantum information protocols. Neutral-atom arrays are a leading platfo...
The fundamental position and momentum operators of quantum mechanics are unbounded, but finite rank compressions of the operators can be considered to obtain partial information on the operators and t...
To scale superconducting quantum processors, it is essential to achieve long coherence times while engineering interactions that do not introduce additional decoherence channels. In superconducting qu...
Insider Brief PRESS RELEASE — Qubic, a quantum technology company developing low-noise cryogenic amplifiers solving one of the major bottlenecks for scaling for quantum computing and with promising ap...
The realization of a scalable quantum internet relies on the ability to temporally align asynchronous photonic signals through on-demand buffering. While matter-based quantum memories achieve long sto...
Finite-time control is central to quantum technologies, yet rigorous limits on reachable targets and optimal control times remain largely unknown. We develop a framework for finite-time reachability a...
Insider Brief PRESS RELEASE — IQM Quantum Computers, the global leader in superconducting quantum computers, today announced a significant achievement in quantum error correction, using directional ti...
Insider Brief PRESS RELEASE — Quantum Computing Inc. (“QCi” or the “Company”) (Nasdaq: QUBT), an innovative, quantum optics and integrated photonics technology company, today announced the completion ...
In quantum communication and fusion-based quantum computation, photonic Bell measurements are fundamentally limited when only passive linear optics is employed. While for qubits, some Bell states can ...
A profound understanding of decoherence and dissipation in quantum dynamics is crucial for the realistic modeling of the evolution of quantum systems. In open quantum dynamics one distinguishes betwee...
Fault-tolerant quantum error correction requires repeated syndrome extraction to address errors induced by the syndrome-extraction circuit itself. However, repeated syndrome extraction incurs signific...
Insider Brief PRESS RELEASE — BTQ Technologies Corp. (“BTQ” or the “Company”) (Nasdaq: BTQ) (CBOE CA: BTQ), a global technology company building the trust infrastructure for the quantum era, is please...
Insider Brief PRESS RELEASE — Quandela today announced that it has experimentally validated a low-latency integration path between photonic quantum processors and NVIDIA AI infrastructure, marking ...
We study free-space continuous-variable quantum key distribution (CV-QKD) with single-mode fiber (SMF) reception under atmospheric turbulence. The optical channel is modeled by split-step propagation ...
We introduce a phase-space measure of quantum synchronization that quantifies relative phase localization for two-qubit and three-qubit systems. This measure is built from the first angular moments of...
We show that a density matrix formalism provides a useful description of non-adiabatic transitions in two-state quantum systems. Compared to a traditional Hamiltonian formalism, even in the absence of...
Insider Brief PRESS RELEASE — Researchers from the University of Sydney, working with IBM, have identified and quantified important factors limiting the performance of quantum computers and demonstrat...
Guest Post by Matt Todd and Bryce Bailey Quantum computing has long been discussed as a distant technical ambition. However, recent developments suggest it is closer as a legal issue than we may think...
Exceptional points (EPs) are non-Hermitian spectral singularities exhibiting fractional-power responses, yet their implications for multipartite entanglement of interacting quantum many-body systems r...
We propose gate-defined spin qubits in electrostatically confined altermagnetic quantum dots. Elliptical confinement of the $d$-wave altermagnetic structure produces a low-energy doublet with opposite...
President Donald J. Trump has signed two Executive Orders aimed at cementing American leadership in the quantum era. Together with their accompanying Fact Sheets, the directives lay out a strategy des...
Insider Brief As expected and reported earlier, President Donald Trump signed an executive order directing the federal government to accelerate quantum technology while expanding protections against f...
Insider Brief The Trump administration is expected to order U.S. intelligence and law enforcement agencies to better protect quantum research from foreign spying, a move that could tie one of the nati...
Yuval Boger interviews Helmut Katzgraber, general partner at 55North and former quantum leader at AWS. They discuss Helmut’s view that the most promising near- to mid-term quantum applications are in ...
We present an efficient protocol for learning an unknown $k$-local Lindblad generator on $n$ qubits using only product-state preparations, short-time evolution, and single-qubit Pauli measurements, wi...
We provide a pre-obfuscation circuit-level implementation of an efficient one shot signature scheme, which has known applications to delegated signatures, secured token transfer, and publicly verifiab...
Insider Brief PRESS RELEASE — A research team led by Professor Hao-Wu Lin from the Department of Materials Science and Engineering at National Tsing Hua University (NTHU) has developed the world’s bri...
Quantum machine learning methods are increasingly explored for modeling complex environmental systems, including groundwater heat plume dynamics. In this work, we explore a Quantum Convolutional Neura...
Insider Brief NVIDIA said Europe is expanding its quantum-GPU computing infrastructure as part of a broader rollout of 35 new artificial intelligence supercomputers across the continent, a move aimed ...
Insider Brief PRESS RELEASE — Infleqtion (NYSE: INFQ), a global leader in quantum computing and quantum sensing powered by neutral-atom technology, today announced the launch of America’s Quantum Spac...
Introduction In biochemical processes development and analysis, binding energy, the energy released when a small molecule docks into a protein’s active site, determines how strongly a compound, such a...
Insider Brief PRESS RELEASE — Hewlett Packard Enterprise has named IQM Quantum Computers among the companies collaborating on its hybrid classical-quantum computing platform, announced at HPE Discover...
We consider a general and practical scenario of quantum key distribution (QKD) over an unknown, stationary, unital qubit channel. Furthermore, due to practical limitations, e.g., relative movement and...
Insider Brief PRESS RELEASE — Fixstars Amplify Corporation (President and CEO: Yoshiki Matsuda) is pleased to announce the addition of the IonQ quantum simulator, provided by IonQ, Inc. (hereinafter “...
This paper starts with the transition from classical physics to quantum mechanics which was greatly aided by the concept of phase space. The role of canonical transformations in quantum mechanics is a...
BB84 quantum key distribution derives its security from a physical guarantee that any eavesdropper disturbs the channel in a statistically detectable way. Prior work evaluates this by assuming Eve att...
Insider Brief PRESS RELEASE — In a paper published in Science Advances, researchers at the University of Technology Sydney (UTS) in collaboration with the University of Minnesota and Kyung Hee Univers...
Drawing on advances in superconducting qubit control schemes that unlock enriched native gate sets at the hardware level, we systematically examine how harnessing this enlarged physical two-qubit gate...
The Learning With Errors (LWE) problem constitutes the mathematical foundation of modern Post-Quantum Cryptography (PQC). Cryptanalysis of LWE ranges from classical lattice reduction to machine learni...
We show that incoherently pumped qubits can realize a cascaded dissipative mechanism for stabilizing Wigner-negative magnon steady states. The mechanism combines qubit pumping with dispersive magnon-n...
Measurement-based continuous-variable optical quantum computing inherently offers high-speed, large-scale operations, yet its practical performance remains constrained by the processing latencies and ...
Reading out a qubit often requires coupling it to a resonator, but that same resonator can also give the qubit an extra path to decay. Here, we study a way to reduce this loss using a built-in permane...
Guest post by Zeynep Koruturk, Dr. Kris Naudts, & Donald Harmitt of Firgun Ventures and Professor Bob Coecke of Relational Intelligence Limited Few questions in the quantum sector are asked more often...
We propose a measurement-like interferometric test of Continuous Spontaneous Localization (CSL), in which a trapped nanoparticle acts as a reversible mesoscopic pointer rather than as the initially pr...
Quantum platforms with beyond-planar connectivity provide new opportunities for fault-tolerant quantum computation (FTQC). While quantum low-density parity-check (qLDPC) codes offer high encoding effi...
Insider Brief Quantum computing is entering a new phase, according to a recent report from IBM’s Institute for Business Value. The question is no longer whether organizations should pay attention to t...
Independent researchers from the IBM Quantum Network have published two separate technical studies validating real-world applications on the IBM Nighthawk quantum processor framework. Orchestrated thr...
Researchers from the Duke Quantum Center and IonQ have demonstrated the distributed generation of a Greenberger–Horne–Zeilinger (GHZ) state across a three-node quantum network using individual trapped...
Cloud-based optimization developer Fixstars Amplify Corporation has added IonQ’s trapped-ion quantum computing environment as a standard execution backend within its optimization platform. The integra...
Insider Brief PRESS RELEASE — Diraq, the quantum-computing pioneer, today announced the expansion of its U.S. operations with a new office in Palo Alto, California. The office strengthens Diraq’s abil...
Insider Brief PRESS RELEASE — European leader in the cloud and co-founding member of France Quantum, is participating in the fifth edition of the event. With more than 1,500 visitors and 60 speakers, ...
Discovery could help in the development of on-chip quantum information technologies that can be scaled down to the nanoscale The post New class of magnons live a hundred times longer appeared first on...
Insider Brief The majority of the conversations about quantum computing focus on hardware and the software side gets less attention, but it is where most people who work with quantum computers actuall...
Insider Brief PRESS RELEASE — Researchers from the Faculty of Physics at Vilnius University have developed a theoretical model that allows atoms to be “pre-programmed” by light alone to reshape laser ...
U.S. Representatives Mike Lawler (R-NY-17) and Pat Ryan (D-NY-18) have introduced bipartisan legislation titled the National Security Commission on Quantum Computing Act of 2026 (H.R. 9318). The propo...
Illustration of the Helios design and conception of operations. Sandia National Laboratories and Quantinuum have published peer-reviewed performance data in the journal Nature detailing Helios, a 98-q...
The University of Southern Denmark (SDU) has partnered with hardware developer Quantinuum and the Danish e-Infrastructure Consortium (DeiC) to integrate the Quantinuum Helios trapped-ion quantum compu...
We study the problem of learning local Lindbladians from black-box access to the physical evolution, and the goal is to estimate all Hamiltonian and dissipative coefficients. We give an algorithm buil...
We present a systematic study of von Neumann entropy estimation in multi-qutrit quantum systems using two complementary approaches: variational quantum algorithms (VQAs) and classical convolutional ne...
Neutral atom quantum computers (NAQC) are emerging as a promising, scalable quantum computing platform because of their long qubit coherence, flexible qubit arrangement, and multiqubit gate capabiliti...
As quantum-computing platforms are susceptible to noise, the fidelity of quantum operations is limited by decoherence. Understanding this limitation is crucial for building utility-scale quantum proce...
The pursuit of quantum advantage is driving the co-evolution of quantum processors and classical simulation methods. Despite advances in scale and quality, the accuracy of quantum simulation is ultima...
Quantum entanglement is a central resource underpinning emerging quantum technologies, enabling capabilities beyond those of classical systems. Accurate verification of entanglement is therefore cruci...
Genuine nonlocality arises when a set of multipartite orthogonal states is locally indistinguishable under any bipartition of the subsystems. The entanglement-assisted discrimination of such genuinely...
High-harmonic generation (HHG) is governed by interference between electron trajectories. We propose that the dominant short and long trajectories define an experimentally addressable two-level subsys...
Continuous variable quantum key distribution via discrete modulations ensures information-theoretic security using standard telecom technologies, providing affordable and scalable quantum communicatio...
Machine learning models have scaled to unprecedented sizes, making training across distributed devices the de facto standard in the field. In this work, we explore how quantum communications can make ...
The success of variational quantum learning models crucially depends on choosing parametrizations that reflect the structure of the problem at hand. Symmetries provide one of the clearest such structu...
The surface code is a promising route towards large-scale quantum computing, requiring only nearest-neighbour gates amenable to superconducting hardware. However, surface codes incur large qubit overh...
Estimating nonlinear properties of quantum states is a central task in quantum information science. Multivariate traces, $\mathrm{tr}(ρ_1 \cdots ρ_K)$, and nonlinear observables such as $\mathrm{tr}(ρ...
Quantum spin glasses are often considered testbeds for studying quantum optimization algorithms and as such have been the subject of various quantum advantage claims. Here we investigate the near adia...
An efficient implementation of quantum algorithms is often hindered by the lack of efficient primitives for operators and state preparation. This limits both the ability of near-term quantum hardware ...
We present the Grover adaptive search self-consistent field (GAS-SCF) algorithm. GAS-SCF leverages quantum arithmetic to construct an efficient oracle that marks target states (Fock states) which impr...
We report the first results of the magnetic dipole hyperfine structure (HFS) constants of neutral $\mathrm{Li}$, Li-like $\mathrm{Be}$, neutral $\mathrm{Na}$, and Na-like $\mathrm{Mg}$ using a modifie...
For quantum algorithms to achieve their full potential, we need methodologies to optimize them, such as reaching a given output accuracy with minimal resource costs. Here, we develop such a methodolog...
Mirror randomized benchmarking (MRB) is an established technique that provides a global error metric at the scale of a whole QPU. To expand upon this we introduce Mirror Quantum Awesomeness (MQA), a h...
Continued advancements in quantum computing have stimulated growing interest in translating quantum technologies into real-world applications. Consequently, the investigation of practically motivated ...
A public-private partnership in the Mountain West announced new results today that mark steady progress toward the Department of Energy's goal of fault-tolerant quantum computing, systems large and re...
Elsewhere, beyond-classical quantum hardware, plus classical computing fires back.
Firm develops superconducting processors, resonators and sensors for quantum computers The post Scottish quantum start-up Quantcore wins IOP qBIG prize appeared first on Physics World .
Many quantum effects can be observed only when a small number of particles is studied—individual atoms, molecules or photons, for example, carefully shielded from the rest of the world. But what about...
Author(s): Casper Gyurik, Alexander Schmidhuber, Robbie King, Vedran Dunjko, and Ryu Hayakawa A quantum algorithm achieving exponential speedup for a topological data analysis problem is proposed, pot...
A team of U.S. researchers has designed a passive quantum error correction technique that enables qubits to correct their own errors. Demonstrated by Shruti Shirol and colleagues at the University of ...
AWS and QuEra will bring the first fault-tolerant quantum computers to the cloud, enabling scientifically relevant applications starting in 2028. Since launching Amazon Braket in 2020, AWS has provide...
Quantum materials are a class of exotic materials with special properties that are governed by quantum mechanics rather than classical physics. Those properties—like superconductivity, entanglement an...
Quantum computers—systems that process information and perform computations by leveraging the principles of quantum mechanics—could solve some tasks faster and more effectively than classical computer...
This post was contributed by Lingnan Shen, Mao Lin, Cedric Yen-Yu Lin, Di Xiao, and Ting Cao Quantum computing is beginning to simulate forms of matter that are difficult to study in the lab or comput...
Researchers from the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, and Johns Hopkins University in Baltimore have developed a practical, comprehensive noise-modeling framework fo...
Matin Durrani reports from a meeting of the London Quantum Cluster The post Quantum influencers gather to celebrate London’s role in quantum tech appeared first on Physics World .
Majorana 2 contains qubits that are 1,000x more reliable than those in our previous quantum processing unit. This rapid progress, enabled by AI, has cut our timeline in half for delivering a scalable ...
This post was contributed to by Zia Mohammad, Scott Smart, Yuvraj Mohan, Mike Piech, and Rebecca Malamud Figure 1: A Rigetti quantum processing unit (QPU) inside a dilution refrigerator. Photo by Drew...