236 curated articles
Phonons hold promise for storing and transferring quantum information, including in mechanically-mediated quantum interconnects between superconducting qubits and light. Phononic crystal cavities conf...
A key enabling feature of future quantum networks is interoperability between platforms that operate at different wavelengths and with different qubit encodings. We demonstrate an interface that conve...
Qubit loss occurs when the physical carrier of a qubit leaves the computational system without directly revealing the event's location. Such errors are a major obstacle to fault-tolerant quantum compu...
The proliferation of power electronics in multi-terminal transmission grids has increasingly led to harmonic distortions and dynamic instabilities. While Resonance Mode Analysis (RMA) provides deep in...
Trapped-ion quantum computing developer IonQ (NYSE: IONQ) has officially completed its acquisition of SkyWater Technology (NASDAQ: SKYT), the largest exclusively U.S.-based semiconductor foundry. Foll...
Insider Brief Press release – SEALSQ Corp (NASDAQ: LAES), (“SEALSQ” or “Company”), a company focused on semiconductors, PKI, and post-quantum technology solutions, today announced the start of the com...
Quantum error correction (QEC) codes can correct twice as many erasure errors as Pauli errors. Because of this scaling advantage, there is significant interest in developing qubits whose dominant erro...
Insider Brief Press release – IonQ (NYSE: IONQ), the world’s leading quantum platform company, today completed its acquisition of SkyWater Technology (NASDAQ: SKYT), the largest exclusively U.S.-based...
IonQ completes its acquisition of SkyWater Technology, creating the only vertically integrated full-stack quantum platform to accelerate quantum computing.
Semiconductor spin qubits are one of the most promising building blocks for future quantum computers, but turning them into a working, large-scale quantum computer has so far proven difficult. For now...
Executive Summary France’s quantum ecosystem continued to expand in July 2026 through a combination of government oversight, industrial scaling, international partnerships and commercial growth, even ...
Insider Brief The post-quantum conversation has focused heavily on which algorithms to adopt, but algorithm selection is the second problem, not the first. The real challenge lies in developing the sy...
Author(s): Lee Peleg, David Schwerdt, Jonathan Nemirovsky, Yotam Shapira, Nitzan Akerman, Ady Stern, Amit Ben Kish, and Roee Ozeri A new polynomial-time method designs fast, robust, programmable multi...
We propose a protocol where chiral magnons mediate a state transfer between two distant spin qubits. The protocol is implemented by varying the coupling between the spin qubits and the magnons in time...
Insider Brief IBM expects quantum computing to begin making a measurable contribution to the company’s financial results within the next few years, as the technology moves closer to commercial use, Ch...
Silicon-based donor flip-flop qubits offer a promising path toward scalable, fault-tolerant quantum computing by combining the long coherence times of nuclear spins with fast, fully electrical control...
Insider Brief Press release – When will meaningful applications of quantum computers arrive? The standard answer has been at least five to ten years, while we wait for fully fault-tolerant hardware wi...
Insider Brief Press release – IBM (NYSE: IBM) and researchers from the University of Chicago today announced a demonstration in quantum computing that achieves the fundamental criteria for quantum adv...
We investigate the task of identifying the parity (odd vs even) of an unknown permutation applied to $n$ particles. Classically, using fewer than $n$ distinct labels per particle limits the success pr...
Nuclear spin qubits in silicon offer exceptionally coherent quantum memory, and optically-interfaced spins are a promising platform for both quantum networking and distributed quantum computing. It ha...
The U.S. Naval Research Laboratory (NRL) has highlighted the operational roadmap of its Quantum Science Institute (QSI), aligning the laboratory's research enterprise with national directives under Ex...
IBM and a coalition of research collaborators—including the University of Chicago, Qedma Quantum Computing, Algorithmiq, RIKEN, and BlueQubit—have announced three joint technical demonstrations of qua...
Roadside units (RSUs) supporting connected and autonomous vehicle corridors need compact models to decide when cooperative maneuvers should be rewarded, deferred, or disabled. Raw sensor streams and n...
Insider Brief PRESS RELEASE — Quantum World Congress today announced that Booz Allen will return as Presenting Sponsor of the 2026 Quantum Startup Pitch Competition, strengthening a collaboration focu...
Insider Brief Press release – From our bank accounts to smartphones, all our sensitive data and devices are protected with a technology known as cryptography. Present-day cryptography essentially uses...
Insider Brief Press release — As a recent Executive Order declares, “the United States stands at the cusp of a quantum revolution.”At the U.S. Naval Research Laboratory (NRL) that future is already ta...
High-rate quantum low-density parity-check (qLDPC) codes encode many logical qubits with low physical-qubit overhead, but realizing efficient fault-tolerant computation on such dense encodings remains...
Cloud-accessible quantum computing has made hardware comparison not only a physics benchmark but also a practical purchasing decision. Cost-aware comparison of quantum computers remains underexplored ...
As quantum computing matures, it is critical to benchmark its real-world problem solving performance against competitive classical methods, such as tensor networks. In this work, we leverage the Densi...
We develop a hybrid qubit--qumode algorithm for nonlinear ordinary differential equations of the form $\dot{\mathbf{x}}=\mathbf{f}(\mathbf{x})$ with drift of polynomial degree~$L$. Following the Fokke...
Wave equations provide a natural testbed for near-term quantum simulation of partial differential equations, but hardware demonstrations have remained limited in spatial dimension, equation class, sys...
In the original Hayden--Preskill recovery, the post-injection scrambler and initial state are {\it not related}. We extend this setup in two ways: by using a SWAP gate so that the scrambler and initia...
We show that global optimal control can drastically suppress the impact of decoherence in globally driven superconducting quantum computing architectures, taking as a prototype a recently proposed qua...
Three approaches to the issue of quantum results that can't be verified classically.
Analog quantum processors based on Rydberg atom arrays are a powerful platform for many-body quantum simulation, combinatorial optimization, and graph machine learning. As these devices become increas...
Optimization problems are among the leading candidates for industrially relevant quantum advantage. Decoded quantum interferometry (DQI) has been proposed to tackle approximate optimization, establish...
Insider Brief Press release – Qedma Quantum Computing, a pioneer in quantum error reduction software and IBM (NYSE: IBM) today announced a breakthrough study demonstrating how trusted, error-mitigated...
Insider Brief Press release – Vexlum, the global leader in high-power semiconductor Vertical-External-Cavity Surface-Emitting Laser (VECSEL) technology, has announced the appointment of Dr. Stefan Tru...
Quantum key distribution (QKD) is secure in principle, but practical security can be undermined by discrepancies between real devices and the idealized models assumed in security proofs. Source side c...
We establish an exponential communication advantage enabled by multipartite quantum entanglement. Building on the bipartite Hidden Matching problem, we introduce a communication task involving multipl...
Insider Brief PRESS RELEASE — Cleveland Clinic and IBM researchers are using quantum computing to tackle one of the most challenging problems in immuno-oncology: predicting which tumor mutations will ...
Insider Brief Researchers from Quantinuum, NVIDIA and Pfizer have developed an artificial intelligence system that learns to generate quantum circuits for molecular simulations in a fraction of the ti...
Topological data analysis (TDA) provides a powerful framework for extracting information about the shape of complex, unstructured data, but the classical cost of computing high dimensional topological...
Modular quantum computing is a leading paradigm for scaling quantum computation beyond the resource limitations of monolithic devices. In this architecture, multiple quantum processing units (QPUs), e...
The manipulation of quantum entanglement is fundamentally irreversible: some mixed entangled states require pure entanglement for their preparation, although no pure entanglement can be recovered from...
Demonstrating a practical quantum advantage remains a central goal in quantum information science. While quantum computational supremacy is still technologically demanding, communication complexity of...
The Non-Equilibrium Green's Function (NEGF) is the standard formalism for nano-scale electron transport. By recasting the NEGF scattering problem as a linear system of equations whose solution encodes...
Companies are making sure we have a surplus of options for building qubits.
Multi-degree-of-freedom photonic quantum processing requires routing between degree-of-freedom (DOF) qubit encodings on a single photon. A SWAP between polarization and time-bin qubits is Multi-degree...
Erasure-error detection can improve the efficiency of quantum error correction by revealing the times and locations of their error events. In this work, we demonstrate erasure conversions and mid-circ...
In a study published today in Nature, hardware developer HRL Laboratories—jointly owned by Boeing and General Motors—demonstrated an 18-qubit silicon spin quantum processing unit (QPU) that operates a...
Native multi-qubit gates could reduce the overhead associated with decompositions into single- and two-qubit operations, but whether they can simultaneously provide high fidelity, simple control and r...
Singlet-triplet qubits offer an attractive encoding for semiconductor quantum computing, combining ancilla-free readout, reduced sensitivity to common-mode noise, and baseband voltage control. However...
Understanding the boundaries between quantum thermalization and localization in many-body systems remains a central frontier of condensed matter and quantum information science. In this work, we inves...
Predictive simulations of catalytic interfaces require correlated electronic-structure treatments that describe localized chemical transformations while retaining the influence of the extended metalli...
Insider Brief PRESS RELEASE — HRL Laboratories published a quantum computing milestone in Nature today: a quantum processor that runs itself. Quantum computers normally depend on racks of external ele...
Insider Brief Quantum computers and encryption debates normally revolve around governmental communications, banking systems, or healthcare data. The role of cryptocurrencies remains underexamined; how...
We propose a sparse computational-basis encoding of voxelized molecular geometries that converts molecular reconstruction from full-state tomography into support recovery by computational-basis sampli...
Insider Brief PRESS RELEASE — The EY organization (EY) announces the expansion of its global quantum computing capabilities with the addition of an on-site quantum computer led by EY Canada and part o...
Schematic of the future quantum internet. Credit: Alireza Shabani, © 2026. The Quantum Economic Development Consortium (QED-C), in collaboration with the NSF-funded Center for Quantum Networks (CQN), ...
Trapped-ion quantum hardware developer IonQ (NYSE: IONQ) has secured final regulatory approval to finalize its acquisition of SkyWater Technology (NASDAQ: SKYT), the largest exclusively U.S.-based sem...
The coherent one-way (COW) protocol is a quantum key distribution scheme that has attracted significant attention, leading to the development and commercialization of practical implementations. Despit...
Insider Brief Press release – The Quantum Economic Development Consortium (QED-C) today released a new Quantum Networking Applications Roadmap, identifying the technologies and performance improvement...
Four commercial quantum companies—Infleqtion, Aliro Technologies, Tensora, and Bandelier Technologies—have officially signed on to leverage ABQ-Net, the first open-access, entanglement-based quantum n...
Quantum technologies are devices and systems that exploit the laws of quantum mechanics and could perform tasks that are difficult or impossible to tackle using their classical counterparts. These tec...
Insider Brief Press release – Horizon Quantum Computing Pte. Ltd., the wholly-owned subsidiary of Horizon Quantum Holdings Ltd. (Nasdaq: HQ) (“Horizon Quantum”), a pioneer of software infrastructure f...
Quantum error correction (QEC) developer Riverlane and non-profit research organization Unitary Foundation have launched the Deltakit Community Fund, a quarterly microgrant initiative designed to acce...
Insider Brief PRESS RELEASE — A new concept from Warwick researchers could help solve one of the biggest challenges to building large-scale quantum computers: enabling communication between vast numbe...
Many security proofs for quantum key distribution (QKD) require Bob's measurement to have a tensor-product structure across protocol rounds, with some techniques requiring the stronger independent-and...
We demonstrate an end-to-end hybrid quantum-classical optimisation framework based on Benders decomposition, capable of solving mixed-integer linear programming (MILP) problems. The framework builds o...
This thesis explores the role of modes, states, and symmetries in quantum optics, within the context of quantum information and quantum metrology. It proposes a unified framework to analyze how the mo...
Randomized compiling (RC) is the standard technique for converting coherent (systematic) gate errors into stochastic noise. The prevailing view is that the twirl destroys coherent-error information. A...
We propose a rapid adiabatic passage (RAP) scheme based on level-crossing-free pulses for deterministic generation of multiqubit entangled states in Rydberg atom systems. Unlike conventional RAP proto...
Quantum generative modelling casts sampling as a generative task: a parametrised quantum circuit is trained such that sampling reproduces a target probability distribution. Instantaneous Quantum Polyn...
We investigate microscopic mechanisms underlying decoherence-induced transitions between topologically ordered states. As a first case study, we analyze the color code using topological entanglement n...
Quantum Noise Stream Cipher (QNSC) has emerged as a physical-layer encryption technique that exploits quantum noise and non-orthogonal coherent-state modulation to secure optical communication. Howeve...
Insider Brief PRESS RELEASE — IonQ (NYSE: IONQ), the world’s leading quantum platform company, today received final regulatory approval to complete its acquisition of SkyWater Technology (NASDAQ: SKYT...
The dynamics of a nuclear spin bath generates magnetic noise that is a key contributor to the decoherence of electron spin qubits in electrostatically-defined quantum dots. In this paper, we extend th...
The predictive success of quantum mechanics underpins many areas of modern science, even as the exact simulation of large, interacting quantum systems remains beyond the reach of classical computation...
Absolutely maximally entangled states represent a highly constrained form of multipartite entanglement and play an important role in quantum information theory. We investigate a weaker form of uniform...
Sampling-based proposals are prominent candidates for demonstrating quantum computations beyond the reach of classical supercomputers. However, it has been difficult to combine their complexity-theore...
Quantum error correction (QEC) is indispensable for scalable fault-tolerant quantum computing. However, discovering QEC codes that remain effective is challenging, as logical performance depends on th...
Quantum computers are moving from research laboratories to industrial machines accessible via the cloud and integrated into high-performance computing facilities. However, translating theoretical quan...
Insider Brief Press release – Riverlane, the world leader in quantum error correction (QEC), and the Unitary Foundation, a non-profit dedicated to scaling the open-source quantum ecosystem, today anno...
Insider Brief Press release – Infleqtion (NYSE: INFQ), a quantum computing and quantum sensing company powered by neutral-atom technology, today announced the appointment of Dr. Joseph Buck as senior ...
Insider Brief NordForsk has joined a new international research initiative with G7 funding agencies to support collaborative quantum technology research, committing funding for Nordic participation in...
Insider Brief The finals of the 2026 Quantum Computing for Social Good International Hackathon opened on July 24 in Gia Lai province, bringing together 27 finalist teams comprising nearly 100 contesta...
Insider Brief PRESS RELEASE — Four leading quantum companies have selected New Mexico’s ABQ-Net, the only open-access entanglement-based quantum network in the United States, to develop and validate n...
Insider Brief A proposed quantum machine-learning framework could make larger quantum neural networks easier to train while preserving computations that are difficult for conventional computers to rep...
The quantum superpositions of coherent states offer an alternative to the conventional qubit-based encodings by harnessing the large Hilbert space available in bosonic modes, including those realised ...
Collective excitations in ordered subwavelength atomic arrays can exhibit strongly suppressed radiative decay due to interference between light scattered by neighboring emitters. These so-called subra...
Entangled states of light lie at the heart of photonic quantum technologies, from distributed quantum communication to quantum-enhanced measurement and information processing. Their practical generati...
Insider Brief Uncertain. Uneven. Unready. Hong Kong’s banking sector has begun preparing for quantum computing, but most institutions remain in the early stages of protecting their systems against fut...
Quantum networks play a pivotal role in quantum information science, which not only provide a secure communication platform for remote access to quantum computers but also serve as the strategic core ...
When a photon and one member of an entangled photon pair are jointly projected onto a Bell-state measurement (BSM), the quantum state of the photon can be transferred to the distant partner of the pai...
Mapping quantum phase diagrams through classical simulation is notoriously resource-intensive, as even small systems far from the thermodynamic limit demand prohibitive computational effort. The varia...
We propose a method to enhance Coulomb interaction between charged macroscopic mechanical oscillators by placing a conducting structure in their vicinity. We derive the effective motional dynamics of ...
The coexistence of quantum information and classical signals in a single fiber is essential for future quantum networks that leverage the well-established optical fiber infrastructure. Although multip...
We develop a record-based account of internal time in quantum mechanics, where the formation of a stable record is represented as conditioning on actualized information, and along a history the accumu...
A new concept from Warwick researchers could help solve one of the biggest challenges to building large-scale quantum computers: enabling communication between vast numbers of quantum bits (qubits) ov...
Passive linear optics is a restricted model of quantum computation, with complexity-theoretic evidence of quantum advantage for sampling tasks and low losses that make it attractive for near-term algo...
Optimal control problems arise in a wide range of scientific disciplines, but the corresponding optimization algorithms often display a strong dependence on hyperparameters that significantly influenc...
Variational quantum algorithms offer a promising route to combinatorial optimization, but their applicability is limited by the challenge of encoding large-scale problems within restricted qubit resou...
Quantum resource testing is a fundamental primitive of quantum information processing, profoundly connected to resource manipulation. Its goal is to discriminate $n$ copies of a given resourceful stat...
We show an explicit qutrit channel whose private and quantum capacities both vanish, although it is neither antidegradable nor positive under partial transposition (PPT). This resolves two longstandin...
Variational quantum circuits have been central to many proposed near-term applications of quantum computing, but a growing body of evidence suggests that trainability and quantum advantage are fundame...
Completely positive (CP) matrices are ubiquitous in modern science and technology with applications in optimization, graph theory, and quantum entanglement. Recently, Johnston \emph{et al.} [Linear Al...
Quantum networks can enable distributed computing and sensing. To realize these capabilities securely, quantum identity authentication is essential. Without authentication at the quantum layer, malici...
Quantum communication is a key enabler of next-generation networks, leveraging quantum entanglement to enable a new class of information exchange. While prior work has focused on the theoretical analy...
Insider Brief Press release – Applications are now open for the Tennessee Quantum Hackathon hosted by The Company Lab (CO.LAB) in partnership with the Chattanooga Quantum Collaborative (CQC) and the U...
Entanglement distillation and entanglement swapping have been extensively studied assuming perfect quantum memories. However, near-term quantum networks will be fundamentally limited by quantum memori...
Telecommunications leader AT&T (NYSE: T) has signed a commercial agreement with D-Wave Quantum Inc. (NASDAQ: QBTS) to expand its use of quantum annealing technology across its network infrastructure o...
We investigate thermal quantum correlations in a system of two coupled superconducting spin qubits described by an effective Andreev spin-qubit Hamiltonian in the presence of spin-orbit interaction. U...
Insider Brief PRESS RELEASE — A hybrid quantum-classical computer will soon operate at the Pittsburgh Supercomputing Center, thanks to a $5-million grant from the National Science Foundation. To deliv...
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...
Insider Brief Press release – QTREX Quantum Ltd. (Nasdaq: QTEX) (“QTREX” or the “Company”) a company focused on advancing Additively Manufactured Electronics (“AME”) for quantum computing infrastructu...
Insider Brief PRESS RELEASE — Researchers from the Universities of Amsterdam and New South Wales have answered a question that has been around for decades: whether ions of the metal ytterbium can ente...
Insider Brief Over the years, numerous quantum companies have released roadmaps proposing how they plan to move their technologies into the marketplace over the coming months and years. Now, in what i...
Free-space quantum key distribution (QKD) provides crucial advantages, including mobility and deployment flexibility, for securing next-generation communication networks. However, practical free-space...
Insider Brief Press release – Bloq Quantum, a leading provider of enterprise quantum software infrastructure, today announced a strategic partnership with QClairvoyance, a premier firm dedicated to re...
Quantum Computing Inc. (QCi) has appointed Susan Hunt as Chief Revenue Officer (CRO). Hunt brings over 30 years of experience in enterprise sales and go-to-market execution across AI, cloud computing,...
Quantum software provider Quantum Elements has released Orbit, an advanced error suppression tool accessible as a Qiskit Function in the IBM Qiskit Functions Catalog. Designed to streamline noise mana...
Quantum software provider Qedma has announced a technical integration with Quantinuum, making its Quantum Error Suppression and Error Mitigation (QESEM) platform directly available across Quantinuum’s...
Quantum computing and sensing company Infleqtion (NYSE: INFQ) has announced plans to deploy its fault-tolerant, neutral-atom quantum computer—Sqale—at the Illinois Quantum & Microelectronics Park (IQM...
The computational workflow of defect candidate search with critical parameters. An international research team led by Professor Hosung Seo at Sungkyunkwan University (SKKU)—in collaboration with resea...
Quantum technology firm Terra Quantum and software-defined vehicle (SDV) provider Apex.AI have validated the integration of NIST-standardized post-quantum cryptography (PQC) into cloud-connected, auto...
Guest Post by By Somtochukwu Igwegbe More than two trillion dollars moved through mobile money worldwide in 2025, and roughly two-thirds of that value flowed through sub-Saharan Africa, according to G...
Insider Brief Most quantum computers rely on extreme cooling to keep their qubits stable. Photonic quantum computers take a different route by using photons, particles of light, as the carriers of qua...
Post-selected stabilizer state preparation is a necessary subroutine in fault-tolerant quantum computation, both for initialization of logical qubits, and for logical-ancilla-based error correction ga...
The promise of quantum computing is to solve complex problems faster and more energy-efficiently than today's supercomputers—from optimizing logistics to simulating molecules. This goal is coming with...
Quantum state preparation is a key component of many quantum algorithms. Performing this step efficiently is essential for realizing practical quantum advantage in quantum chemistry applications. Iter...
Quantum networks promise secure communication, distributed sensing and modular quantum computing by interconnecting distant quantum nodes through photonic links. Extending such networks beyond metropo...
This is a short study of an approach offering high tolerance to damage (i.e. defects or 'drop outs') in solid state fault-tolerant quantum computing. Our method is primarily aimed at semiconductor ele...
We introduce Quantum-Informed Surrogate Sampling (QISS), a post-processing framework that generates candidate solutions to combinatorial optimization problems from low-weight correlations of shallow q...
Insider Brief PRESS RELEASE — A research team led by SKKU Professor Hosung Seo of the Department of Quantum Information Engineering and the SKKU Advanced Institute of Nanotechnology, working with the ...
Tantalum has been demonstrated as a promising material for superconducting qubits. However, comparatively little attention has been given to its nitrides. Tantalum nitride exhibits a range of stoichio...
A research team led by SKKU professor Hosung Seo of the Department of Quantum Information Engineering and the SKKU Advanced Institute of Nanotechnology, working with the University of Wisconsin–Madiso...
Insider Brief Quantum computing is often portrayed as a race to build better qubits, but this is just part of the bigger challenge. Beneath every qubit is an endeavor to find the right material that c...
Insider Brief Press release – The Washington Institute for STEM, Entrepreneurship and Research (WISER) announces the successful completion of a research collaboration with E.ON on energy demand foreca...
Insider Brief Press release – Digital Catapult has today welcomed eleven leading organisations to the third cohort of its Quantum Technology Access Programme (QTAP), delivered in collaboration with th...
Insider Brief Press release – Terra Quantum, a global leader in quantum technologies, and Apex.AI, a leading provider of safe and secure software for software-defined vehicles and intelligent machines...
Capacitive loading has emerged as a major obstacle to scaling fluxonium qubits from one-dimensional to highly connected two-dimensional (2D) architectures, yet its physical origin remains poorly under...
Guest Post By Sudiptaa Paul Choudhury is Chief Marketing Officer at QNu Labs, a global leader in quantum cybersecurity, TEDx speaker and a LinkedIn Top Voice. Quantum computing has stopped being a lab...
Insider Brief PRESS RELEASE — Bloq Quantum, a leading provider of enterprise quantum software infrastructure, today announced a strategic partnership with the Department of Electronics and Communicati...
By Doug Finke IBM Quantum’s announcement about their intended acquisition of HRL Laboratories is quite important and a little surprising. But if you look at this further, there are good reasons why th...
High-dimensional qudit (i.e., $d$-level or $d$-state) systems outperform two-dimensional qubit (i.e., 2-level or 2-state) systems in some quantum information processing tasks. We exploit entanglement ...
A quantum battery is a novel energy storage device that operates on the principles of quantum mechanics. To enhance the charging performance of quantum batteries and further provide theoretical suppor...
Photonic quantum sensing often uses low-rank entangled probes such as Greenberger-Horne-Zeilinger (GHZ), Bell, and NOON states. Although these probes are ideally rank-1, practical quantum state tomogr...
We give, to our knowledge, the first plain-model, one-time information-theoretically secure, efficient unclonable encryption scheme for one classical bit. Previous work by Bhattacharyya and Culf (Natu...
Sending quantum information through a chain of qubits, like energy through a Newton's cradle, could be the key to faster operations and take quantum computing to the next level.
Silicon spin qubits are a leading platform for scalable quantum computing, but their performance is limited by charge noise, widely attributed to two-level fluctuators (TLFs). The location of individu...
Insider Brief Press release – Today, the Illinois Quantum and Microelectronics Park (IQMP) and the Quantum STrategic industry Alliance for Revolution (Q-STAR) announced a new partnership to strengthen...
To maximize the value of fault-tolerant quantum computers, it is essential to develop concrete applications beyond well-established domains such as chemistry and condensed-matter physics. Here we cons...
Entanglement purification protocols (EPPs) are essential for improving entanglement fidelity to support fault-tolerant distributed quantum information processing. Practical entanglement sources are of...
We present a strategic plan for neutral atom quantum computation, bringing together hardware development and theory advancements to achieve the goal of practical quantum advantage. The concept of prac...
Variational quantum algorithms are a leading approach to near-term quantum computing, but their scalability can be limited by barren plateaus and the sampling cost of resolving small changes in the lo...
Formal verification is becoming increasingly practical for quantum computing, yet the ability of AI agents to construct machine-checkable proofs in this domain remains unmeasured. We introduce Lean-Qu...
Chiral quantum light-matter interfaces, where the internal spin state of a quantum emitter determines the direction in which it emits, are essential building blocks of non-reciprocal quantum devices, ...
Financial fraud detection is challenged by decentralized data, severe class imbalance, and privacy constraints. This paper presents QuantumChain, a secure Quantum Federated Learning (QFL) framework th...
IBM (NYSE: IBM) has signed a definitive agreement to acquire HRL Laboratories, LLC (HRL), the Malibu-based research and development institution jointly owned by Boeing and General Motors. The acquisit...
Insider Brief The White House’s new science strategy proposes a different way of organizing American innovation, one that could reshape how the U.S. quantum sector develops over the next decade. Yet m...
Entanglement distillation is a fundamental task in quantum information theory. In this work, we prove that Werner states in arbitrary dimension are 2-copy distillable if and only if they are 1-copy di...
Implementing controlled dissipative dynamics is a powerful approach for state preparation in a variety of contexts, including the preparation of remote entangled states. Here, we show that by going be...
Recent experiments on quantum computers have challenged the limits of classical computation in chemistry, simulating ground states of strongly correlated molecules. Many of these experiments have util...
Insider Brief Press release – Infleqtion (NYSE: INFQ), a global leader in quantum computing and quantum sensing powered by neutral-atom technology, announced it will deploy its fault-tolerant, neutral...
Quasiparticles are a prominent decoherence source in superconducting qubits, but their effects are notoriously difficult to isolate in fluxonium. Unlike a transmon, fluxonium is insensitive to offset ...
Repeated-interaction machines distinguish heat-like from work-like resources through the steady states they generate, but whether topology can control this distinction remains unknown. Here we reveal ...
This podcast also explores the intersection of general relativity and quantum information The post Quarks and qubits: how quantum computing could transform particle physics appeared first on Physics W...
Insider Brief Press release – Quantum Elements, a provider of AI-powered digital twins for quantum computing developers, today announced that Orbit, an advanced quantum error suppression tool, will be...
As quantum key distribution (QKD) progresses from laboratory demonstrations toward practical deployment, quantum communi- cation networks increasingly require higher key rates and the ability to distr...
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 a...
Insider Brief Press release – Qedma today announced an integration with Quantinuum’s platform that will allow customers to use its advanced error mitigation on industry-leading quantum computing hardw...
Neutral atom quantum systems offer a promising pathway to large-scale quantum computing due to high qubit uniformity and flexible connectivity. To exploit this architecture, compilers must coordinate ...
Insider Brief Hitachi has launched a government-backed research effort with Intel K.K. and Japan‘s National Institute of Advanced Industrial Science and Technology, or AIST, to develop silicon-based q...
Insider Brief Press release – Zero Point Cryogenics (ZPC), one of only six companies worldwide that designs and manufactures the cryogenic infrastructure quantum technologies rely on, is opening its f...
Insider Brief PRESS RELEASE — Quantum information is notoriously fragile. Internet traffic is anything but. Yet Northwestern University scientists have demonstrated they can peacefully coexist inside ...
Digital asset and data center infrastructure firm Galaxy Digital Inc. (Nasdaq: GLXY) has announced the launch of the Galaxy Bitcoin Quantum Readiness Initiative. The multi-pillar program is designed t...
Rice University has officially joined the U.S. Department of Energy’s (DOE) Quantum Science Center (QSC), expanding its footprint in national fault-tolerant quantum computing R&D. Headquartered at Oak...
Digital trust and Public Key Infrastructure (PKI) management provider Keyfactor has announced an expansion of its Global Partner Program. The program is designed to equip systems integrators, hypersca...
Japan’s flagship research institute, RIKEN, has initiated operations for ROQUO, a new hybrid Quantum-HPC supercomputer located at the RIKEN Center for Computational Science (R-CCS) in Kobe. Constructe...
Insider Brief PRESS RELEASE — Taiyi Quantum, a Shanghai-based quantum computing company developing fault-tolerant quantum computers based on ytterbium neutral atoms, has completed a RMB 300 million (a...
Quantum-kernel methods encode a dataset's geometry in a Gram matrix, so learning claims on hardware kernels assume the intended geometry survives execution. We measure that survival for one frozen fou...
Sympathetic cooling of data qubits by coolant ions is an essential technique for trapped-ion quantum computing. Conventionally a second ion species is used, requiring additional lasers and complicatin...
Insider Brief Press release – Infleqtion (NYSE: INFQ), a global leader in quantum computing and quantum sensing powered by neutral-atom technology, announced it has been awarded three projects to acce...
We study the dynamics of quantum entanglement between two harmonically trapped electrons interacting via the electromagnetic force. Starting from two-mode Gaussian states at thermal equilibrium, we ma...
Insider Brief Researchers have developed a new framework that uses the geometry of quantum states to help quantum machine learning models retain previously learned knowledge while acquiring new tasks,...
Photonic quantum computing developer PsiQuantum has signed a $125 million expanded tasking agreement with the Defense Advanced Research Projects Agency (DARPA) under the Quantum Benchmarking Initiativ...
Insider Brief Press release – BTQ Technologies Corp. (“BTQ“ or the “Company”) (Nasdaq: BTQ) (CBOE CA: BTQ), a global quantum technology company focused on securing mission-critical networks, today ann...
We propose a protocol for preparing mechanical Schrödinger kittens -- mesoscopic quantum superpositions of coherent motional states of an optically levitated nanoparticle -- by adhering single electro...
Insider Brief Press release – Keyfactor, the leader in trust infrastructure for AI and machines, today announced a major expansion of its Global Partner Program, designed to help partners capitalize o...
Insider Brief Press release – Quantum Computing Inc. (“QCi” or the “Company”) (Nasdaq: QUBT), a vertically integrated quantum company pioneering photonics and semiconductor manufacturing, today announ...
Qubits with strongly biased noise, in which phase-flip errors are orders of magnitude more frequent than bit-flips, arise both naturally, as in electron and nuclear spins, and by engineering, as in st...
Insider Brief PRESS RELEASE — PsiQuantum today announced that the company has signed a new $125 million expanded agreement with the Defense Advanced Research Projects Agency (DARPA) under DARPA’s Quan...
Matter-wave Bell interferometers provide a sensitive probe of mass-dependent decoherence in entangled quantum systems. The degree of entanglement is obtained from the Bell-correlation amplitude of thi...
Insider Brief PRESS RELEASE — Quantinuum (NASDAQ: QNT) and SoftBank Corp. (“SoftBank”) today announced the publication of “Quantum Computing Frontiers,” a joint white paper that maps two commercially-...
In this Letter, we theoretically propose an alternative scheme for generating vortex optical squeezing, based on the Raman scattering process in a coherently prepared medium, distinct from approaches ...
Quantum teleportation is a key protocol for transmitting quantum information using entanglement and classical communication. Its reliability is constrained by both the availability and fidelity of sha...
In this work, we investigate the quantum entanglement properties of analog Hawking radiation produced by a moving mirror. Using two detector modes defined through window functions on a quantum field, ...
Quantum nonlocality based on the violation of Bell-like inequalities constitutes a fundamental feature of quantum physics and drives the development of device-independent (DI) quantum information tech...
We propose a minimal quantum-optical scheme for generating hybrid entanglement between photon polarization and electronic orbital angular momentum in a semiconductor quantum disk. A spin--orbit struct...
In a joint white paper published today, Quantinuum (NASDAQ: QNT) and Japan-based telecommunications conglomerate SoftBank Corp. have outlined a strategic timeline mapping industrial quantum chemistry ...
German quantum computing startup SAXON Q has announced the commercial release of the SXQ128 (128 qubits) and the SXQ512 (512 qubits), marking the first diamond-based nitrogen-vacancy (NV) center quant...
Insider Brief Galaxy Digital has launched the Galaxy Bitcoin Quantum Readiness Initiative, committing up to $5 million toward developer grants, a dedicated research program, and a new advisory council...
The Variational Quantum Eigensolver (VQE) is a leading algorithm for estimating molecular ground-state energies on near-term quantum hardware, with applications spanning quantum chemistry, materials s...
Quantum simulation of open quantum systems offers a pathway towards better understanding various non-equilibrium physics that would otherwise be challenging to study. Most open quantum systems studied...
This paper introduces an interactive music system with quantum musical agents that communicate by teleporting quantum states to one another. Human performers interact in real time with agents whose me...
Quantum key distribution (QKD) allows for provably secure key distribution between two trusted parties. Because the security and performance of QKD protocols rely on devices that behave according to s...
Insider Brief The U.K. government has elevated artificial intelligence to the center of policymaking by giving its AI minister a seat in Cabinet while abolishing the Department for Science, Innovation...
Insider Brief Press release – The Singapore Armed Forces (SAF) Digital and Intelligence Service (DIS) and Defence Science and Technology Agency (DSTA) have partnered IBM to explore the use of quantum ...
Insider Brief Researchers have experimentally demonstrated a new type of superconducting quantum circuit that reproduces a long-predicted gauge symmetry believed to be a key ingredient for future topo...
Insider Brief PRESS RELEASE — Photon Queue, a quantum technology company building high-efficiency quantum memories for next-generation quantum computing systems, today announced the close of its overs...
While entanglement is known to enable exponential improvements in the sample complexity of quantum learning, it remains unclear which properties of entangled resources are responsible for such improve...
While decoherence is known to erode classical hardness in quantum random sampling, the impact of coherent spatial disorder remains an open question. We study a square-lattice instantaneous quantum pol...
Insider Brief A hybrid quantum-classical approach to fine-tuning artificial intelligence models could eventually consume less energy than classical simulation while matching or surpassing several conv...
The Dicke model provides a fundamental description of collective light-matter interactions and has long served as a testbed for exploring a wide range of physical phenomena in quantum optics and conde...
A driven qubit exchanges energy with the propagating modes that drive it. When two spatially separated modes drive a single qubit with opposite amplitudes, their net action on the qubit cancels. Yet t...
This post was contributed by Dimitar Trenev, Sebastian Stern, Tyler Takeshita, Cedric Lin, Peter Komar, Pooja Rao, Jerome Gonthier, and Elica Kyoseva. As quantum computing matures toward fault toleran...
Real-time decoding is a critical bottleneck for large-scale fault-tolerant quantum computing. AI-based neural pre-decoders locally correct most physical errors before passing residual syndromes to a g...
We construct and experimentally implement compact gate-native circuits that simulate the state-transfer interference underlying three- and four-level chiral-resolution protocols. Both models are encod...
Variational Quantum Algorithms (VQAs) are a leading paradigm for near-term quantum computing, combining parameterized quantum circuits with classical optimization across quantum chemistry, combinatori...
We investigate the topology of the set $\mathsf E$ of entangled bipartite density operators acting on $\mathbb{C}^{n_1}\otimes\mathbb{C}^{n_2}$. We start by showing that $\mathsf E$ is path-connected,...
Insider Brief Press release – Maybell Quantum today announced it will establish operations at the Roadrunner Quantum Lab Powered by the State of New Mexico. Maybell will expand into the state with new...
Circuit cutting promises to scale quantum computations beyond current hardware, but variational quantum advantage also requires low cutting overhead, classical hardness, and trainability. We show that...
Insider Brief Press release – The Israel Innovation Authority has launched a new call for proposals to establish a national research and development infrastructure that will provide Israeli industry a...
Pauli-based simulators offer a promising route to large-scale classical simulation of quantum circuits in the low-magic regime. Yet their applicability remains largely limited to forward simulation, m...
We provide a formal framework for Continuous-Variable Quantum Computing (CQC). While CQC is supported by photonic quantum hardware, we are not aware of a formal semantics for continuous-variable quant...
Quantum machine learning on real noisy intermediate-scale quantum (NISQ) hardware has remained largely confined to binary or few-class tasks, limited by the cost of on-hardware training and the underu...
Quantum key distribution (QKD) over non-stationary channels, such as satellite links, is characterized by short, high-loss, and strongly fluctuating transmission windows that produce sparse detection ...
Insider Brief Quantum Computing Inc. has filed a registration statement with the U.S. Securities and Exchange Commission to register an additional 13.5 million shares of common stock for issuance unde...
Insider Brief PRESS RELEASE — The U.S. Department of Energy’s (DOE) Office of Isotope R&D and Production (IRP), within the Office of Science, today announced a major, multi-laboratory breakthrough in ...
Insider Brief PRESS RELEASE — IQM Quantum Computers (Nasdaq: IQMX), a global leader in full-stack superconducting quantum computers, today published the results of a research collaboration with Deutsc...
Bell nonlocality is both a defining signature of entanglement and a key quantum information resource. However, visualizing and certifying nonlocal correlations across a spatially multimode photonic fi...
Parametric frequency modulation is a standard tool in superconducting circuits for activating tunable interactions and implementing quantum gates. Here, we engineer dissipation in a flux-tunable trans...
By applying the framework of entropic uncertainty relation (EUR) and the Quantum Leftover Hash Lemma (QLHL), we introduce a security-proof method for variable-length side-channel-secure (SCS) quantum ...
We develop a sparse operator-centric realization of $n$-qubit variational quantum algorithms in the complex Clifford algebra $\mathrm{Cl}(2n,\mathbb{C}) \cong M(2^n,\mathbb{C})$. Density operators, ga...
The inevitable leakage of energy and information from a quantum system into its surrounding environment is the enemy of quantum technology. Now, researchers have demonstrated that it can be exploited ...