206 curated articles
Insider Brief Press release – The Company Lab (CO.LAB) today announced CO.LAB Q, a 12-month quantum commercialization studio designed to help promising startups and research teams turn advanced techno...
Yuval Boger interviews Dorit Dor, co-founder of QBeat Ventures and former senior executive at Check Point. They discuss lessons quantum startups can draw from the evolution of cybersecurity, including...
Insider Brief Press release – The University of Guelph and Xanadu, a Canadian leader in quantum computing, have signed a memorandum of understanding (MOU) to collaborate on advancing quantum computing...
Quantum processors with native multi-qubit gates may offer very efficient implementations of near-term quantum algorithms on noisy hardware. Here, we introduce the multiunimon, a superconducting multi...
Insider Brief Mention quantum teleportation in conversation and most people picture humans dissolving in one place and appearing somewhere else. Something from Star Trek, maybe with a dramatic sound e...
The connection between Krylov complexity and Berry phase in adiabatic dynamics is investigated under the instantaneous eigenstate basis of a slowly evolving spin system. Adiabatic dynamics force the K...
Quantum circuits are fundamental components of quantum computing, and state-vector-based quantum circuit simulation is a widely used technique for tracking qubit behavior throughout circuit evolution....
Japanese industrial conglomerates Mitsui & Co. and Mitsubishi Electric have published joint experimental benchmarks evaluating the Quantum Fourier Transform (QFT) on Quantinuum’s 98-qubit Helios trapp...
Researchers from Quantinuum, NVIDIA, and Pfizer Inc. have validated a Generative Quantum AI (GenQAI) framework designed to automate and accelerate quantum circuit synthesis for pharmaceutical research...
Hybrid approaches that combine different spin qubit encodings offer promising advantages. In particular, the additional degrees of freedom available in exchange-only qubits and their extensions enable...
The EPFL Center for Quantum Science and Engineering (QSE), in collaboration with EPFL’s SCITAS high-performance computing (HPC) platform, has partnered with Quantinuum to provide cloud-based access to...
Insider Brief Press release – New independent modelling has been released that shows Quantum Australia‘s national programs have created $83.1 million in economic value while supporting more than six t...
Trapped-ion quantum computing developer Quantinuum (NASDAQ: QNT) and Fortune Global 500 electronics manufacturer Quanta Computer have signed a collaborative development agreement to industrialize the ...
Insider Brief Tamil Nadu signed four memoranda of understanding (MoUs) with quantum computing ventures at the Vetri Tamil Nadu Investment Conclave 2026, the Deccan Chronicle reported. The agreements c...
Insider Brief Press release – Florida State University is launching Florida’s first formal graduate-level credential in quantum information science and engineering, opening a new pathway for students ...
Insider Brief Press release – Innosphere, on behalf of the National Science Foundation ASCEND Engine, has entered into a Memorandum of Understanding (MOU) with the Montana Photonics and Quantum Allian...
Insider Brief Press release – Quanta Computer (“Quanta”), a Fortune Global 500 manufacturer of advanced computing and cloud infrastructure, and Quantinuum (Nasdaq: QNT), a leading quantum computing co...
The authors present a rigorous empirical evaluation of three distinct optimization paradigms for institutional factor portfolio construction: an entropy-based photonic quantum annealer (Dirac-3, Quant...
Entanglement certification is often performed on states that have already undergone noisy transmission or processing. Noise can reduce the surviving entanglement and can also cause a given criterion t...
Quantum diffusion models typically parameterize forward corruption by raw channel strength, even though equal parameter increments need not erase equal information or induce comparable inverse problem...
Insider Brief Silicon spin qubit company Diraq has published a blog post arguing that the quantum computing industry’s hiring model which is historically built around doctoral-level candidates – canno...
Quantum illumination exploits entanglement between a transmitted signal and a retained idler to improve the error-probability exponent of target detection by roughly a factor of four (6 dB) over that ...
For testing quantum mechanics in the macroscopic domain, a major challenge is to devise effective means for enhancing the observable nonclassical signatures despite the ubiquitous presence of environm...
Absolutely maximally entangled states require every reduction of at most half of the parties to be maximally mixed, a condition that is both rigid and often impossible for qubit systems. Previous work...
We show that the network of quantum register states of a quantum computer (QC), coupled through residual two-body interactions between qubits, exhibits small-world properties analogous to those of com...
Molecular spins represent a versatile platform for quantum information science, with the potential to offer chemically tunable, addressable qubits. However, achieving this requires understanding and m...
Certifying genuine multipartite entanglement in quantum systems can require a number of measurements that grows exponentially with the system size. Here we introduce a criterion based on correlation-t...
The Defense Advanced Research Projects Agency (DARPA) has awarded a research contract to quantum networking hardware startup Qunnect to enhance the signal stability and resilience of entanglement-base...
Quantum computing has alternated between breakthrough darling and overhyped promise in technology circles. Its powerful new capabilities come with a threat to break current cryptography, but for busin...
In quantum physics the order in which different operations occur can be placed in superposition. The resulting processes have an indefinite causal order and are both of fundamental interest and can be...
To achieve large-scale fault-tolerant quantum computation, it may be easier to combine many small sets of qubits than to construct a single large set. For example via quantum error correction with blo...
The spin of a quasiparticle trapped in a quantum dot Josephson junction forms the basis of an Andreev spin qubit (ASQ): a semiconductor-superconductor device where the interplay between a localized sp...
Characterising the efficiency with which designs over various subsets of the unitary group may be constructed is an important goal of quantum information theory. While it is now known that approximate...
Quantum technology has the potential to transform scientific discovery, but quantum advantages often require processing capabilities well beyond the reach of experimental platforms. We show that coupl...
Specialized engineering firm T-SQUARED has commenced construction on a new Quantum Innovation Centre at Oxford Technology Park for neutral-atom quantum technology company Infleqtion (NYSE: INFQ). The ...
Unitary designs provide finite-moment approximations to Haar-random unitaries, with wide-ranging applications across physics and quantum information, from scrambling and black-hole dynamics to foundat...
We propose a unified physical principle for entanglement harvesting: the entanglement that two localized detectors can extract from a quantum field is determined solely by how localized the field's ef...
Discrete-time quantum walks provide a versatile framework for investigating the generation, redistribution, and transport of quantum correlations in composite quantum systems. Here, we study the dynam...
Analysis of a mathematical puzzle that Leonhard Euler deemed unsolvable in the 1700s reveals that the crucial ingredient for cracking it after all is quantum entanglement
Insider Brief Press release – For decades, the distribution of quantum information has been confined to laboratory demonstrations because of the fragile nature of maintaining the fidelity of quantum e...
The University of Guelph (U of G) and photonic quantum computing developer Xanadu Quantum Technologies (NASDAQ/TSX: XNDU) have signed a Memorandum of Understanding (MOU) to collaborate on quantum comp...
Photonic quantum computing developer Xanadu Quantum Technologies Limited (NASDAQ/TSX: XNDU) has announced a strategic research partnership with the University of Alberta to engineer novel quantum algo...
Quantum technology provider BTQ Technologies Corp. (NASDAQ: BTQ) has signed a Memorandum of Understanding (MOU) with ITCENGLOBAL CO., Ltd. (KOSDAQ: 124500) through its listed security platform subsidi...
Aggregating logical quantum information encoded in continuous-variable phase space is essential for distributed quantum computing. However, passive linear optics fail for non-Gaussian Gottesman-Kitaev...
The trapped-ion optical-metastable-ground ($\textit{omg}$) architecture for quantum processors promises the full functionality of two-species experiments, including sympathetic cooling and non-destruc...
Determining whether a target unitary can be implemented within a prescribed quantum circuit architecture is a fundamental problem in quantum information, with direct implications for optimisation and ...
We classically simulate the IBM doped Clifford random circuit sampling experiment, comprising $70$ qubits, $70$ entangling layers, and $468$ inserted $T$ gates. A deterministic temporal-boundary tenso...
Ensuring ancilla safety is a critical correctness requirement for quantum compilation, since ancilla qubits are routinely introduced to implement complex operations with fewer gates and reduced depth....
We introduce an operational measure of nonclassicality for qubit systems based on the violation of Kolmogorov consistency conditions in sequential measurements. In contrast to previous work by Milz et...
From fluid flow and transport to collective dynamics, numerical simulation of nonlinear partial differential equations underpins modern scientific computing. Extending this capability to quantum compu...
We investigate how network geometry and excitation sector separately control pairwise entanglement decay in asymmetric multipartite $W$ states. To disentangle these effects, we introduce an analytical...
As quantum computing progresses from proof-of-principle demonstrations toward practical utility, a significant impediment is the need to augment algorithmic feasibility with system-level optimization ...
Scientific simulations demand methods combining scalability with predictive accuracy. Density Functional Theory (DFT) on High-Performance Computing (HPC) enables large-scale electronic-structure simul...
When quantum information initially stored in a local qubit disappears, it need not be lost: it may have moved into nearby degrees of freedom or become inaccessible to shallow local control. We introdu...
Magnetic levitation offer passive levitation of massive objects for use in advanced inertia sensors, for the generation of non-classical macroscopic motional states, and towards the table-top testing ...
Fixed quantum feature maps are increasingly inserted into diffusion denoisers, but standard image benchmarks do not reveal which structural constraint limits them. We introduce CoupledPhaseTexture, a ...
Quantum advantage refers to the point at which a quantum computer solves a clearly defined task faster or more efficiently than any classical computer—or makes it solvable in the first place. For many...
Indefinite causal order reverses the direction of heat flow without violating thermodynamics The post Quantum principle allows heat to flow from cold to hot appeared first on Physics World .
Insider Brief PRESS RELEASE — The inevitable leakage of energy and information from a quantum system into its surrounding environment is the enemy of quantum technology. Now, researchers have demonstr...
Insider Brief U.S. lawmakers are moving to sharply increase military spending on quantum technology as Washington seeks to keep pace with China and turn years of scientific research into defense, inte...
D-Wave Quantum Inc. reported its financial results for the second quarter and first half of 2026, highlighting significant commercial momentum and rapid growth in long-term commitments. While quarterl...
Quemix Inc., a Tokyo-based quantum software and algorithm startup and consolidated subsidiary of TerraSky Co., Ltd., announced it has secured an investment from Honda Motor Co., Ltd. The funding, prov...
Shanghai-based photonic quantum firm TuringQ has officially initiated pre-IPO tutoring with the Shanghai branch of the China Securities Regulatory Commission, positioning itself as a leading contender...
Installation of an integrated-photonics surface ion trap into an experimental vacuum system. The National Science Foundation (NSF) has selected a multidisciplinary team led by the University of Califo...
Yuval Boger interviews Matt Kinsella, CEO of Infleqtion. They discuss Infleqtion’s neutral-atom strategy, including its combination of quantum computing, sensing, and timing products, and why Matt bel...
Rigetti Computing, Inc. (Nasdaq: RGTI) has reported its financial results for the second quarter ended June 30, 2026. The Berkeley-based superconducting quantum developer highlighted sequential and ye...
Quantum software provider QC Ware has completed a technology demonstration validating a hybrid quantum-classical computational chemistry workflow using its Promethium® platform and IBM Quantum hardwar...
Scientists have generated quantum entanglement directly from sunlight, potentially offering a lower-energy alternative to the lasers normally used in quantum technology. Their outdoor experiment produ...
Using light to process quantum information is one of the most promising approaches to building future quantum computers. Light particles, known as photons, are excellent carriers of quantum informatio...
Generating entanglement rapidly and reliably is essential for quantum information processing, communication, and metrology. Dissipative preparation is attractive because engineered reservoirs robustly...
IonQ, Inc. (NYSE: IONQ) has reported its financial results for the second quarter ended June 30, 2026. The College Park-based trapped-ion leader delivered its fifth consecutive quarter of record resul...
High rate quantum low-density parity-check codes on reconfigurable neutral-atom arrays can reduce the overhead of quantum error correction, but near-term devices support only hundreds of qubits with l...
This paper investigates a quantum extension of classical Multiple-Input Multiple-Output (MIMO) communication in which the conventional linear channel model is replaced by a parameterized multi-qubit u...
Insider Brief Shanghai-based TuringQ has entered the IPO preparation process, becoming the latest Chinese quantum computing company to pursue a public listing as the country’s quantum sector shifts it...
Flip-chip integration offers a promising route toward scalable superconducting quantum processors and hybrid semiconductor-superconductor quantum devices. We develop a three-dimensional transmon archi...
Continuous-variable quantum key distribution (CV-QKD) promises high rates and seamless integration with classical beams within a single optical fiber. Over the years, implementations have been perform...
Insider Brief Every major organization has published a timeline. Governments, technology companies, financial institutions, critical infrastructure operators, and blockchain communities – all of the m...
Quantum coherence, quantum decoherence, and photon number reduction are coexistent in linear lossy optical systems. However, how these three elements combine together to determine the evolution of the...
Insider Brief Press release – QC Ware (“QC Ware” or the “Company”) today announced a technology demonstration of a hybrid quantum-classical computational chemistry workflow using Promethium® and IBM Q...
Insider Brief Press release – Rigetti Computing, Inc. (Nasdaq: RGTI) (“Rigetti” or the “Company”), a pioneer in full-stack quantum-classical computing, today announced financial results for the second...
Insider Brief PRESS RELEASE — Scientists have demonstrated that sunlight, as a natural light source, can generate quantum-entangled photon pairs. With their findings, the international research team c...
We propose and demonstrate the Kramers-Henneberger KH) atom as a novel qubit platform for ultrafast single-qubit gate operations. In the KH frame, the time-averaged strong laser field engineers a doub...
How quantum matter relaxes far from equilibrium is a central open problem in many-body physics, and one for which analog quantum simulators are well positioned to move from confirming theory to discov...
The failure of quantum thermalization due to Many-Body Localization (MBL) has evolved from a theoretical concept in spin chains to an experimental reality in synthetic quantum platforms, most notably ...
French neutral-atom quantum computing developer Pasqal Holding SAS has announced that its joint Form F-4 Registration Statement with Special Purpose Acquisition Company (SPAC) Bleichroeder Acquisition...
The quantification of multipartite entanglement remains a long-standing open challenge in quantum information theory with major implications for quantum foundations and quantum technologies. In the co...
Insider Brief Press release – Uviquity, a deep-tech company building integrated photonics on an aluminum nitride (AlN) platform for quantum and ultraviolet applications, today announced that Dr. Vince...
Neutral atoms trapped in optical tweezers and excited to Rydberg states, together with trapped ions, are among the most advanced platforms for quantum simulation and quantum computing. Current experim...
The amplification of quantum information carried by a single quantum excitation is a recurring challenge across diverse quantum platforms. The coupling between a single qubit and a mesoscopic ensemble...
Insider Brief PRESS RELEASE — Eighty higher education students from across the country participated in various activities and engaged with quantum science experts in a week-long summer school experien...
Insider Brief Press release – ZeroTier, one of the world’s top software-defined networking companies, and Carahsoft Technology Corp., The Trusted Government IT Solutions Provider®, today announced a s...
Distributed quantum computing provides a scalable route for executing quantum circuits beyond the capacity limits of a single quantum processing unit (QPU), but it introduces a communication-aware com...
Electron spin qubits in microwave cavities provide a promising platform for scalable quantum computing hardware, leveraging long coherence times, charge-noise robustness and cavity mediated qubit-qubi...
We test whether a parameterized quantum circuit (PQC) improves a hybrid quantum-classical model's performance on classical datasets, using an interface-matched classical map as the control while holdi...
Unsharp measurements are key resources for tasks that balance information gain and disturbance, but certifying them without device assumptions remains a challenge. We propose a fully device-independen...
This paper aims to contextualize the requirements for Quantum Computing (QC) algorithms to achieve a quantum advantage in solving the alternating current power flow (ACPF) problem, with a focus on run...
Shor's algorithm is a canonical quantum supremacy target whose core operation relies on the Quantum Fourier Transform (QFT). We resolve an open question of Fang, Fenner, Green, Homer and Zhang from 20...
Xanadu Quantum Technologies Ltd. (NASDAQ/TSX: XNDU) has announced its financial results for the second quarter ended June 30, 2026. The Toronto-based photonic quantum leader highlighted significant ha...
Insider Brief A preliminary paper from an Amazon Web Services cryptographer describes a polynomial-time quantum algorithm for a long-standing mathematical problem whose solution could have implication...
We apply time-reversal symmetry to quantum codes and show that it imposes parity selection rules on the physical error algebra. A time-reversal-invariant logical qubit on an odd number of spins is a K...
Topologically ordered phases naturally realize quantum error correction through nonlocal encoding of quantum information. More recently, conformal field theories have been shown to realize approximate...
Quantum errors are a normal part of quantum computing because fragile physical qubits (the tiny components storing data) can easily break down because of environmental noise, like heat, stray signals ...
Quantum optimization has attracted growing interest as quantum hardware continues to improve, yet state-of-the-art classical solvers remain a formidable benchmark for practical utility. Rather than se...
Solving the Vehicle Routing Problem (VRP) in Stochastic Transportation Networks (STNs), a core task in Intelligent Transportation Systems (ITS), introduces estimation challenges for stochastic path tr...
Mapping quantum programs to restricted physical chips requires SWAP operations, incurring depth and error penalties. In symmetric programs, this routing overhead breaks theoretical symmetry because id...
Today's quantum technologies rely on energy-intensive lasers, raising concerns that scaling them up could further increase energy demands. In new work, researchers have demonstrated that quantum entan...
Insider Brief Press release – Florida Atlantic University’s Executive Education program in the College of Business is launching a new certificate course in quantum computing designed to help business ...
Yonatan Cohen of Quantum Machines is our podcast guest The post Building bridges between quantum and classical computing appeared first on Physics World .
Insider Brief Press release – Pasqal Holding SAS (“Pasqal”), a global leader in neutral-atom quantum computing, today announced that its joint registration statement on Form F-4 (the “Registration Sta...
Insider Brief D-Wave Quantum reported flat second-quarter revenue but continued strong growth in bookings, underscoring growing customer demand as the company accelerated investment in both its anneal...
Researchers from the National Institute of Standards and Technology (NIST), the Joint Quantum Institute (JQI) at the University of Maryland, and quantum networking firm Qunnect have successfully demon...
High-dimensional nuclear spins offer a hardware-efficient route to quantum error correction (QEC), with the spin cat code providing intrinsic robustness against phase errors -- the dominant noise chan...
Quantum computing, networking, and sensing platform provider IonQ (NYSE: IONQ) has announced two strategic defense sector awards expanding its national security portfolio across quantum position, navi...
Insider Brief Press release – Daon®, The Digital Identity Trust Company, today introduced its Quantum Identity architecture, a patent-backed approach designed to help future identity systems determine...
We study idealized levitated protocols that create spatial superpositions of massive test particles. For each protocol, we compare the dimensionless contrast-loss exponent of mass-proportional continu...
Insider Brief Press release – Quantum Optics Jena GmbH today announced that its ELVIS system has become the world’s first quantum communication system to resist real-world quantum hacking tricks, pass...
Thailand’s Ministry of Higher Education, Science, Research and Innovation (MHESI), industrial conglomerate Charoen Pokphand (CP) Group, telecommunications provider True Corporation, Arise Ventures Gro...
Quantum cybersecurity platform provider enQase and quantum communications firm Light Rider Inc. have announced a strategic technology partnership to combine their software, hardware, and key distribut...
a, Schematic of a two dual-rail cavity qubit system. b, Diagram of the SWS gate sequence between two dual-rail cavity qubits. c, Schematic of photon population during the gate sequence for the four ba...
Reaching fault tolerance means scaling qubit counts by orders of magnitude, a jump that conventional superconducting architectures cannot sustain without solving the so-called `wiring problem'. Global...
Insider Brief DARPA is shifting more of its attention from demonstrating quantum technologies in the laboratory to figuring out how to manufacture them at scale, according to a news release from the a...
Quantum state tomography is fundamental to quantum information processing but becomes infeasible at scale due to the exponential growth of the state space. Shadow tomography alleviates this challenge ...
Insider Brief Xanadu Quantum Technologies reported higher year-over-year second-quarter revenue while stepping up investment in research, manufacturing and U.S. expansion, as the photonic quantum comp...
Guest Post by Michael Osei, M.Sc. in Physics. Press release – Quantum technology can sound like science fiction: computers that solve problems beyond the reach of today’s machines, sensors that detect...
Distributing entanglement between distant qubits is a crucial element of scalable quantum computing. Here, we describe a scalable quantum interconnect that generates remote entanglement at rates appro...
Non-Abelian anyons arise as exotic excitations in fractional quantum Hall (FQH) matter and have proved very elusive to realize in conventional platforms. In this work, we show that on a programmable q...
Perfect prepare-and-measure games exhibit an all-or-nothing quantum advantage: a quantum system of dimension $d$ satisfies every prescribed winning constraint, whereas a classical $d$-level message ca...
This post was contributed by Martin Schuetz and Ruben Andrist from the Amazon Advanced Solutions Lab, and Romina Yalovetzky and Atithi Acharya from Global Technology Applied Research at JPMorganChase....
Company noted for building quantum annealers now also making gate-based hardware.
Neutral atom quantum computing utilizes laser-trapped neutral atoms as qubits and realizes quantum logic gate operations through Rydberg-state interactions. In recent years, it has become one of the m...
Extracting total correlations from a quantum system usually requires reconstructing its state, whereas many experiments access only a few measurement settings. A possible shortcut is to add the mutual...
The recently proposed spontaneous disentanglement hypothesis is formulated using a modified Schrödinger equation having an added nonlinear term. The hypothesis is motivated by some outstanding issues ...
All realistic quantum systems are inevitably in contact with the environment. Suppressing theimpact of environmental noise is a critical challenge in cutting-edge quantum technologies. In thiswork, we...
Israeli quantum startup Qarakal Quantum Ltd. has officially launched Pangaea, a modular, three-dimensional superconducting quantum computing architecture engineered to reduce the physical qubit requir...
Dynamic quantum circuits (DQCs) provide a hardware-efficient route to quantum computing by reducing physical-qubit overhead and compressing circuit topology through mid-circuit measurements, qubit res...
Quantum platform developer IonQ (NYSE: IONQ) has signed a Memorandum of Understanding (MOU) with Sandia National Laboratories to pursue the co-design of quantum information science (QIS) technologies ...
Indefinite causal order extends quantum information processing beyond fixed causal structures, with the quantum SWITCH serving as its canonical realization. By coherently superposing different orders ...
Hamming weight computation maps an $n$-bit input to the number of ones it contains. It is a basic subroutine in quantum computing, and the core building block for symmetric Boolean functions, whose va...
Kristian Dominek Barajas is head of quantum theory at Oxford Ionics, an IonQ company The post Ask me anything: Kristian Dominek Barajas – ‘I’m able to take a really complicated problem and give it my ...
Insider Brief Leading quantum technology companies, researchers and policymakers will gather next week at The University of Texas at Dallas to discuss the future of quantum computing, networking and w...
Schrödinger cat states, representing coherent superpositions of macroscopically distinguishable states, are indispensable nonclassical resources for continuous-variable quantum information processing....
Insider Brief Israel has launched a national tender to establish a domestically produced quantum computing platform, marking the first major implementation step in a broader government strategy aimed ...
Insider Brief Press release – IonQ (NYSE: IONQ), a leading quantum platform company, today announced it has signed a memorandum of understanding with Sandia National Laboratories, to explore accelerat...
High-coherence superconducting cavities offer a promising platform for quantum information, with long coherence times and negligible intrinsic dephasing. However, cavity control generally relies on no...
Partial dynamical symmetry (PDS) is an algebraic structure in which a prescribed symmetry is neither exact nor completely broken: a subset of eigenstates keeps good quantum numbers and remains solvabl...
Measurement-based quantum simulation (MBQS)---a recently proposed architecture for simulating lattice gauge theories---implements Hamiltonian dynamics by consuming a model-specific entangled resource ...
IonQ signs an MOU with Sandia National Laboratories to accelerate quantum computing, networking, and ion-trap co-design for U.S. national security.
Tensor-network contraction simulates quantum circuits, but modern matrix accelerators (NPUs, TPUs) expose only real GEMM pipelines, so the complex networks of quantum simulation must be reconstructed ...
It is well established that quantum strategies outperform classical ones in several communication tasks. We study the quantum communication complexity of correlations arising from joint measurements o...
Quantum error correction (QEC) is indispensable for building scalable fault-tolerant quantum computers. Effective QEC demands stringent real-time decoding: the decoder must process syndrome measuremen...
Quantum error correction (QEC) and Quantum Darwinism describe opposing consequences of system-environment interactions: QEC seeks to preserve logical quantum information, whereas Quantum Darwinism exp...
Insider Brief Press release – enQase, a U.S.-based full-stack quantum-safe security platform, and Light Rider Inc., a quantum technology company developing secure communications, quantum entropy, and ...
The influence of environmental decoherence on quantum teleportation is investigated by considering the three-qubit Maximally Sliced (MS) state as the shared entangled resource. Using the Kraus operato...
Symmetry-protected topological (SPT) phases provide a platform for encoding quantum information in protected boundary degrees of freedom. Here we study the three-leg Affleck-Kennedy-Lieb-Tasaki (AKLT)...
Vacuum Rabi oscillations between a single photon and a single spin demonstrate the capability of harnessing light-matter interaction at the level of a single quantum of energy. Since the observation o...
Insider Brief Press release – Quantum Corridor, Ciena (NYSE: CIEN) and Toshiba have completed a successful trial of high-speed quantum-safe networking on Quantum Corridor’s live commercial network in ...
Entanglement distillation is a fundamental task in quantum information processing. In this work, we investigate the distillability properties of a class of two-qutrit symmetric NPT states of rank five...
Insider Brief Press release – Horizon Quantum Holdings Ltd. (Nasdaq: HQ) (“Horizon Quantum,” “Horizon,” or “the Company”), a pioneer of software infrastructure for quantum applications, today reported...
Insider Brief IQM Quantum Computers said its public listing has strengthened its financial position and allowed it to reaffirm its 2026 outlook, according to a statement from the company. The Finnish ...
Insider Brief Press release – According to the 2026 Thales Data Threat Report, the threat of Harvest Now, Decrypt Later (HNDL) attacks was the top-cited risk, with 59% of organizations reporting that ...
Insider Brief Jim Cramer said he plans to sell his bitcoin — perhaps not coincidentally — after IBM Chairman and CEO Arvind Krishna warned that investors should be “paranoid” about quantum computing’s...
This study investigates the generation and enhancement of quantum entanglement in an electro-optomechanical ring cavity system. The setup integrates two Coulomb-coupled mechanical resonators, which se...
The gravitational frequency shift of light is well understood in the theory of classical electromagnetism. Nevertheless, its description in quantum theory is not yet fully developed. Recent work point...
Insider Brief Press release – QuiX Quantum today announced the commercial availability of Alquor 2.0, the next generation of its rack-mountable quantum photonic processor platform, available in 8-mode...
Classical simulation of quantum circuits is an essential tool in quantum information science, but its applicability is constrained by the exponential growth of the Hilbert space and the entanglement s...
Integration of quantum optical technique on-chip is crucial for large scale applications of quantum technology, which were proven in a free space environment to be superior to the corresponding classi...
Quantum computing developer D-Wave Quantum Inc. (NASDAQ: QBTS) has signed an agreement with Nasdaq Verafin—the financial crime management technology unit of Nasdaq—to evaluate the use of quantum-hybri...
Tokyo-based optical quantum startup OptQC Corp. and telecommunications giant NTT, Inc. have signed a capital and business alliance agreement to accelerate the development and commercialization of a fa...
Students participating in hands-on STEM activities. Source: PsiQuantum Photonic quantum computing developer PsiQuantum has announced a $250,000 philanthropic investment to expand local STEM education,...
Tokyo-based quantum software developer JIJ Inc. has announced the completion of an 840 million JPY (approximately $5.2 million USD) equity financing round led by Global Brain. The capital raise includ...
Quantum hardware and networking company IonQ (NYSE: IONQ) and Chattanooga electric power and telecommunications provider EPB have announced plans to launch the Tennessee Quantum Communications Researc...
Global digital services provider Fujitsu, Monash University, and Australia’s national science agency CSIRO have signed a Memorandum of Understanding (MoU) to accelerate the development of practical qu...
Protected superconducting qubits such as the $0$-$π$ qubit promise to substantially suppress error rates, facilitating fault-tolerant quantum computing with fewer qubits. Measuring these qubits is cha...
Insider Brief Press release – IonQ, Inc. (NYSE: IONQ), the world’s leading quantum platform company, and EPB, Chattanooga’s energy and communications solutions company, today announced plans for the T...
Insider Brief Quantum scientists exploring the deepest mysteries of quantum mechanics may be able to enlist the assistance of an artificial intelligence helper, according to a frontier AI lab. An inte...
We introduce a novel multipartite entanglement-assisted classical communication task, referred to as dense coding swapping, in which legitimate parties collaboratively swap the dense codeability from ...
Monitored random Clifford circuit is a paradigmatic platform for exploring non-equilibrium quantum many-body dynamics using quantum-information methods. It is well-known for exhibiting a measurement-i...
Quantum algorithms based on linear-system approaches for solving differential equations demand qubit and precision resources beyond near-term capabilities. To address these challenges, this work propo...
Photonic multi-qubit entanglement is key to optical quantum information processing, particularly universal quantum computing. Yet multi-photon sources suffer from low emission efficiency, making singl...
We investigate a quantum Otto engine (QOE) constructed from the two-qubit quantum Rabi model, operating within a cavity quantum electrodynamics (QED) architecture. The engine operates with two qubits ...
The standard benchmark for high-dimensional entanglement is the number of dimensions in which entanglement must be present in order to generate the state. This is called the Schmidt number and its det...
Entanglement generation is a fundamental dynamical capability in quantum information science and underpins many quantum advantages. While quantum theory enables it through unitary dynamics, boxworld, ...
Insider Brief Press release – Today, PsiQuantum announced a $250,000 philanthropic investment in local schools, higher education institutions, and STEM programs to advance the next generation of scien...
Quantum computing developer Rigetti Computing (Nasdaq: RGTI) has partnered with Hewlett Packard Enterprise (HPE) and the Pittsburgh Supercomputing Center (PSC)—a joint center of Carnegie Mellon Univer...
Readable error records can protect quantum sensing because they prevent physically distinct noise trajectories from being irreversibly mixed. A finite detector or ancilla, however, can retain only fin...
Quantum resource theory has sharpened our understanding of the intrinsic complexity of quantum systems, particularly their classical simulability. However, it remains unclear which quantum resource go...
The University of California, Berkeley—on behalf of its Department of Physics and the Roger Herst Quantum Nexus—has signed a five-year Memorandum of Understanding (MOU) with quantum automation develop...
Many-body localization (MBL) is a dynamical phenomenon that describes the non-ergodicity of isolated quantum many-body systems. In contrast to thermalization, this phenomenon leads to a long-lived mem...
Insider Brief Press release – SEALSQ Corp (NASDAQ: LAES) (“SEALSQ” or the “Company”), a global leader in post-quantum semiconductor and cybersecurity technology, today highlighted the growing importan...
Insider Brief China has established a national technical committee dedicated to quantum information standards, underscoring the country’s effort to build the regulatory and technical framework needed ...
Most recently proposed quantum algorithms for solving linear and nonlinear partial differential equations rely on non-unitary operations. These operations are typically implemented probabilistically, ...
Insider Brief Press release – OptQC Corp. (Headquarters: Toshima-ku, Tokyo; Representative Director and CEO: Kan Takase; hereinafter “OptQC“) and NTT, Inc. (Headquarters: Chiyoda-ku, Tokyo; President ...
In spite of recent advances, quantum computers are expected to be sufficiently noisy in the coming few years to the extent of limiting quantum chemical calculations to relatively small number of orbit...
Insider Brief Press release – D-Wave Quantum Inc. (NASDAQ: QBTS), (“D-Wave” or the “Company”), the only dual-platform quantum computing company providing both annealing and gate-model systems, softwar...
Fault-tolerant quantum computing requires classical decoders that keep pace with the underlying hardware, translating syndrome measurements into corrections fast enough to avoid an exponential backlog...
Quantum error correction (QEC) is the most promising route toward fault-tolerant quantum computing and, thus, useful quantum computers. QEC operates as a continuous measure-decode-correct cycle: ancil...
We prove that the entanglement of formation of every two-mode Gaussian state coincides with its Gaussian restriction, solving a longstanding open problem in continuous variable quantum information the...
We introduce Pangaea, a fault-tolerant quantum architecture that uses a quantum bus to mediate logical operations between remote patches of two-dimensional topological codes. The bus is an auxiliary g...
Magnonic systems are a promising resource for quantum technologies because of their ability to couple significantly disparate quantum platforms and the generation of nonclassical magnon states through...
This paper proposes a multi ring M-APSK constellation optimization method for discrete-modulated continuous variable quantum key distribution. Unlike conventional APSK structures with fixed ring spaci...
Quantum metrology, which addresses parameter estimation in quantum systems, has broad applications across science and technology. Conventional metrology protocols for multi-qubit states in the multi-p...
Superconducting quantum computer developer IQM Quantum Computers (Nasdaq: IQMX) and European rail operator Deutsche Bahn have published joint research demonstrating the execution of a hybrid quantum-c...
Global professional services firm Ernst & Young (EY) has announced the addition of an on-site quantum computer to its in-house technology stack. Led by EY Canada, the deployment serves as a key innova...
IBM and researchers from the University of Chicago announced a demonstration in quantum computing that meets the fundamental criteria for "quantum advantage"—the point where quantum computers can be c...
Researchers from the Cleveland Clinic and IBM Research have developed a quantum machine learning framework to predict which tumor gene mutations generate immunogenic neoantigens—abnormal cell-surface ...
Yuval Boger interviews mathematician Gil Kalai about his long-standing skepticism regarding scalable quantum computing. Kalai explains two main arguments behind his theory: correlated noise that may d...