⚡ Latest Articles
Phys.org Quantum
Researchers at the Würzburg site of the Cluster of Excellence ctd.qmat have succeeded in transferring the topological quantum Hall and spin Hall effects to a hybrid light-matter system by harnessing targeted material…
The Quantum Insider
Insider Brief PRESS RELEASE — Xanadu Quantum Technologies Limited (“Xanadu” or the “Company”), a leading photonic quantum computing company, today became a publicly listed company on Nasdaq and Toronto Stock Exchange…
The Quantum Insider
Insider Brief PRESS RELEASE — SBQuantum, the first company delivering quantum diamond magnetometers capable of providing accurate and timely data for navigation, defense and public safety applications, today announces…
The Quantum Insider
Insider Brief China Telecom is elevating quantum technology to a core growth driver, reporting rapid expansion in the segment even as its absolute financial contribution remains unclear and likely small relative to the…
The Quantum Insider
Insider Brief Wellcome Leap’s Quantum for Bio (Q4Bio) program, a $40M research initiative with up to $10M in challenge prizes, has reached its final in-person milestone. This week, the six finalist teams gathered in…
The Quantum Insider
Insider Brief A joint Cleveland Clinic-IBM research team has used quantum computing to demonstrate a hybrid quantum-classical workflow to approximate the electronic structure of a protein for the first time, IBM…
The Quantum Insider
Insider Brief What is Quantum Banking? Quantum Banking is a new type of banking system that makes use of quantum technologies. This system has the potential to revolutionize the banking sector by providing more secure…
The Quantum Insider
Insider Brief PRESS RELEASE — Rigetti Computing, Inc. (Nasdaq: RGTI) (“Rigetti” or the “Company”), a pioneer in full-stack quantum-classical computing, today announced that it intends to invest up to $100 million in the…
arXiv Quantum Physics
arXiv:2603.24654v1 Announce Type: new Abstract: This article presents an argument for why quantum computers could unlock new methods for machine learning. We argue that spectral methods, in particular those that learn,…
arXiv Quantum Physics
arXiv:2603.24665v1 Announce Type: new Abstract: Determining whether an observed distribution of events generated in a quantum network is Bell local, i.e., if it admits an alternative realization in terms of independent…
arXiv Quantum Physics
arXiv:2603.24671v1 Announce Type: new Abstract: Under decoherence, an initial Gaussian (free-fermion) state evolves into a non-Gaussian mixed state, so the resulting decohered fermionic state is not exactly solvable in…
arXiv Quantum Physics
arXiv:2603.24679v1 Announce Type: new Abstract: Quantum walks constitute a rich area of quantum information science, where multipartite entanglement plays a central role in the dynamics and scalability of quantum…
arXiv Quantum Physics
arXiv:2603.24728v1 Announce Type: new Abstract: Accurate ground-state energy calculations remain a central challenge in quantum chemistry due to the exponential scaling of the many-body Hilbert space. Variational Monte…
arXiv Quantum Physics
arXiv:2603.24731v1 Announce Type: new Abstract: We show that any $n$-qubit Clifford unitary can be implemented using at most $2n$ multi-qubit joint measurements. All the multi-qubit joint measurements used for…
arXiv Quantum Physics
arXiv:2603.24778v1 Announce Type: new Abstract: Quantum mode parameter estimation determines parameters governing the shape of electromagnetic modes occupied by a quantum state of radiation. Canonical examples, time…
arXiv Quantum Physics
arXiv:2603.24805v1 Announce Type: new Abstract: Quantum optics provides a fundamental framework for understanding the interaction between light and matter at the quantum level. Recently, it has been shown that under…
arXiv Quantum Physics
Modeling Quantum Billiards with the Finite Element Method: Searching for Quantum Scarring Candidates
arXiv:2603.24864v1 Announce Type: new Abstract: An electron in quantum confinement takes on a discrete energy spectrum which is defined based on the solution to the Schrodinger Equation for a given potential. Well…
arXiv Quantum Physics
arXiv:2603.24868v1 Announce Type: new Abstract: We introduce Quantum Spectral Authentication (QSA), a primitive for verifying that a remote quantum endpoint still possesses a previously installed secret quantum…
arXiv Quantum Physics
arXiv:2603.24874v1 Announce Type: new Abstract: We investigate congestion-aware control of quantum repeater nodes operating under stochastic traffic and finite memory coherence. Entanglement generation is modeled as a…
arXiv Quantum Physics
arXiv:2603.24902v1 Announce Type: new Abstract: Magic and entanglement are two measures that are widely used to characterize quantum resources. We study the interplay between magic and entanglement in two-qubit systems,…
arXiv Quantum Physics
arXiv:2603.24950v1 Announce Type: new Abstract: Fermionic linear optics (FLO) with Gaussian resources is efficiently classically simulable. We show that this is no longer the case for such quantum circuits for fermions…
arXiv Quantum Physics
arXiv:2603.25023v1 Announce Type: new Abstract: Nonstabilizerness, or magic, is a necessary resource for quantum advantage beyond the classically simulatable Clifford framework. Recent works have begun to chart the…
arXiv Quantum Physics
arXiv:2603.25039v1 Announce Type: new Abstract: This review is designed to introduce mathematicians and computational scientists to quantum computing (QC) through the lens of uncertainty quantification (UQ) by…
arXiv Quantum Physics
arXiv:2603.25066v1 Announce Type: new Abstract: Capturing the dynamics of quantum many-body systems under time-dependent driving protocols is a central challenge for numerical simulations. Existing methods such as…
arXiv Quantum Physics
arXiv:2603.25125v1 Announce Type: new Abstract: We investigate a hybrid photon blockade (HPB) scheme in a driven two-qubit cavity QED system arising from the combination of eigenenergy-level anharmonicity (ELA) and…
arXiv Quantum Physics
arXiv:2603.25128v1 Announce Type: new Abstract: We present a measurement-based quantum thermal machine that extracts work from the back-action of generalized quantum measurements whose working medium is a coupled…
arXiv Quantum Physics
arXiv:2603.25138v1 Announce Type: new Abstract: In reinforcement learning, an agent interacts sequentially with an environment to maximize a reward, receiving only partial, probabilistic feedback. This creates a…
arXiv Quantum Physics
arXiv:2603.25151v1 Announce Type: new Abstract: In this paper the random channels and their compositions in the space of quantum states are studied. For compositions of i.i.d. random unitary channels, the limit…
arXiv Quantum Physics
arXiv:2603.25173v1 Announce Type: new Abstract: Exploiting quantum effects for energy storage, quantum batteries (QBs) offer compelling advantages over conventional ones in terms of superior energy density, ultrafast…
arXiv Quantum Physics
arXiv:2603.25219v1 Announce Type: new Abstract: It was once conjectured that two graph states are local unitary (LU) equivalent if and only if they are local Clifford (LC) equivalent. This so-called LU-LC conjecture was…
arXiv Quantum Physics
arXiv:2603.25234v1 Announce Type: new Abstract: In highly purified host, the coherence of quantum emitters is ultimately limited by hyperfine interactions between the emitter and lattice nuclei possessing non-zero…
arXiv Quantum Physics
arXiv:2603.25264v1 Announce Type: new Abstract: Quantum state transfer between distant nodes is essential for distributed quantum information processing. Existing protocols are typically optimized for specific coupling…
arXiv Quantum Physics
arXiv:2603.25315v1 Announce Type: new Abstract: Sorkin's impossible operations demonstrate that causality of a quantum channel in QFT is an additional constraint on quantum operations above and beyond the locality of…
arXiv Quantum Physics
arXiv:2603.25335v1 Announce Type: new Abstract: This note starts with a recapitulation of what people call the ``Measurement Problem'' of Quantum Mechanics (QM). The dissipative nature of the quantum-mechanical…
arXiv Quantum Physics
arXiv:2603.25341v1 Announce Type: new Abstract: Resonance fluorescence from a coherently driven two-level emitter is a minimal quantum optical field that combines phase coherence with single-photon-level nonlinearity.…
arXiv Quantum Physics
arXiv:2603.25345v1 Announce Type: new Abstract: Measurement incompatibility and bipartite quantum steering are known to display a strong connection: a set of measurements is incompatible if and only if it can lead to…
arXiv Quantum Physics
arXiv:2603.25358v1 Announce Type: new Abstract: Importance sampling based on quasi-probability decomposition is the backbone of many widely used techniques, such as error mitigation, circuit knitting, and, more…
arXiv Quantum Physics
Optimizing Entanglement Distribution Protocols: Maximizing Classical Information in Quantum Networks
arXiv:2603.25360v1 Announce Type: new Abstract: Efficient entanglement distribution is the foundational challenge in realizing large-scale Quantum Networks. However, state-of-the-art solutions are frequently limited by…
arXiv Quantum Physics
arXiv:2603.25387v1 Announce Type: new Abstract: Local Operator Entanglement (LOE) has emerged an indicator of quantum chaos in many-body systems. Numerical studies have shown that, in chaotic systems, LOE grows linearly…
arXiv Quantum Physics
arXiv:2603.25394v1 Announce Type: new Abstract: The computation of thermal properties of quantum many-body systems is a central challenge in our understanding of quantum mechanics. We introduce the Quantum Finite…
arXiv Quantum Physics
arXiv:2603.25409v1 Announce Type: new Abstract: Quantum theory brings into question the compatibility of the twin desiderata of exact knowability of the present state of the physical world and perfect predictability of…
arXiv Quantum Physics
arXiv:2603.25410v1 Announce Type: new Abstract: The spin alignment conjecture was originally formulated in connection with the additivity of coherent information for a class of quantum channels known as platypus…
arXiv Quantum Physics
arXiv:2603.25461v1 Announce Type: new Abstract: In this work, we derive the bipartite density matrix for the $e^{+}e^{-} \rightarrow J/\psi \rightarrow \Lambda(p\pi^{-}) \bar{\Lambda}(\bar{p}\pi^{+})$ process at BESIII.…
arXiv Quantum Physics
arXiv:2603.25482v1 Announce Type: new Abstract: Quantum communication networks require transmission of high-fidelity, uncoded qubits for applications such as entanglement distribution and quantum key distribution.…
arXiv Quantum Physics
arXiv:2603.25485v1 Announce Type: new Abstract: We show that networks of quantum frames of reference, in which one frame may be used to produce multiple other frames that in their turn prepare systems which may interact…
arXiv Quantum Physics
arXiv:2603.25496v1 Announce Type: new Abstract: Quantum Key Distribution (QKD) protocols require Information-Theoretically Secure (ITS) authentication of the classical channel to preserve the unconditional security of…
arXiv Quantum Physics
arXiv:2603.25512v1 Announce Type: new Abstract: Time-local generators of open quantum systems are generically divergent at long times, even though the reduced dynamics remains regular. We construct, by analytic…
arXiv Quantum Physics
arXiv:2603.25519v1 Announce Type: new Abstract: Bitcoin already faces a quantum threat through Shor attacks on elliptic-curve signatures. This paper isolates the other component that public discussion often conflates…
arXiv Quantum Physics
arXiv:2603.25560v1 Announce Type: new Abstract: This paper explores an efficient method for entanglement quantification in two-qubit and qubit-qutrit quantum systems based upon the framework of collective measurements…
arXiv Quantum Physics
arXiv:2603.25563v1 Announce Type: new Abstract: Quantum repeater networks distribute entanglement over lossy links while many users share a limited pool of entangled pairs. Most existing routing schemes either always…
arXiv Quantum Physics
arXiv:2603.25582v1 Announce Type: new Abstract: We extend Quantum Computing Quantum Monte Carlo (QCQMC) beyond ground-state energy estimation by systematically constructing the quantum circuits used for state…
arXiv Quantum Physics
arXiv:2603.25610v1 Announce Type: new Abstract: Encoding continuous-variable quantum information in the optical domain has recently enabled the generation of large entangled states, yet robust implementation remains a…
arXiv Quantum Physics
arXiv:2603.25625v1 Announce Type: new Abstract: Counterdiabatic (CD) driving enables efficient quantum state preparation, but it requires implementing highly nonlocal adiabatic gauge potentials (AGP) that are…
arXiv Quantum Physics
arXiv:2603.25684v1 Announce Type: new Abstract: Quantum interference of indistinguishable photons is the foundation of photonic quantum technologies, yet scaling from a few to many identical quantum light sources…
arXiv Quantum Physics
arXiv:2603.24698v1 Announce Type: cross Abstract: String breaking is at the core of hadronization models of relevance to particle colliders. Yet, studies of string-breaking dynamics rooted in quantum chromodynamics…
arXiv Quantum Physics
arXiv:2603.24789v1 Announce Type: cross Abstract: Neutral-atom quantum simulation is susceptible to entanglement between the atom's internal electronic state and its center-of-mass position. In many alkali Rydberg…
arXiv Quantum Physics
arXiv:2603.24971v1 Announce Type: cross Abstract: Connected and automated vehicles require city-scale coordination under strict latency and reliability constraints. However, many existing approaches optimize…
arXiv Quantum Physics
arXiv:2603.25090v1 Announce Type: cross Abstract: Beamsplitters represent fundamental components in both classical and quantum optical systems, enabling the distribution of light, as well as the generation of…
arXiv Quantum Physics
arXiv:2603.25424v1 Announce Type: cross Abstract: We study quantum and stochastic deformations of the rule-54 reversible cellular automaton (RCA54) on a 1+1-dimensional spatiotemporal lattice, focusing on their…
arXiv Quantum Physics
arXiv:2603.25492v1 Announce Type: cross Abstract: The tensor-network renormalization group (TNRG) is an accurate numerical real-space renormalization group method for studying phase transitions in both quantum and…
arXiv Quantum Physics
arXiv:2603.25503v1 Announce Type: cross Abstract: We explore different implementations of the quantum Bell causality (QBC) condition in the quantum sequential growth (QSG) dynamics of causal set quantum gravity, for…
arXiv Quantum Physics
arXiv:2603.25648v1 Announce Type: cross Abstract: A central challenge in nanoscale superconductivity is to understand and exploit the combined action of quantum confinement and proximity effects in experimentally…
arXiv Quantum Physics
arXiv:2603.25665v1 Announce Type: cross Abstract: The surface code is a promising platform for a quantum memory, but its threshold under coherent errors remains incompletely understood. We study maximum-likelihood…
arXiv Quantum Physics
arXiv:2603.25724v1 Announce Type: cross Abstract: We investigate the anatomy and complexity of quantum states in Krylov space, in the ergodic and many-body localised (MBL) phases of a disordered, interacting spin chain.…
arXiv Quantum Physics
arXiv:2206.08342v2 Announce Type: replace Abstract: We resolve the approximability of the maximum energy of the Quantum Max Cut (QMC) problem using product states. A classical 0.498-approximation, using a basic…
arXiv Quantum Physics
arXiv:2401.06240v3 Announce Type: replace Abstract: Many problems in linear algebra -- such as those arising from non-Hermitian physics and differential equations -- can be solved on a quantum computer by processing…
arXiv Quantum Physics
arXiv:2405.00849v2 Announce Type: replace Abstract: Bell-state measurement (BSM) on entangled states shared between quantum repeaters is the fundamental operation used to route entanglement in quantum networks.…
arXiv Quantum Physics
arXiv:2405.01295v3 Announce Type: replace Abstract: The recent discovery of inverse current in coupled transport (ICC) in classical systems~\textcolor{blue}{[\textbf{Phys. Rev. Lett.} \textbf{124}, 110607 (2020)]} --…
arXiv Quantum Physics
arXiv:2406.15853v4 Announce Type: replace Abstract: Quantum conference key agreement enables secure communication among multiple parties by leveraging multipartite entanglement, which is expected to play a crucial role…
arXiv Quantum Physics
arXiv:2407.17641v2 Announce Type: replace Abstract: We introduce regular language states, a family of quantum many-body states. They are built from a special class of formal languages, called regular, which has been…
arXiv Quantum Physics
arXiv:2408.00079v4 Announce Type: replace Abstract: We propose a class of metrological resource states whose quantum Fisher information scales optimally in both system size and noise rate. In these states, qubits are…
arXiv Quantum Physics
arXiv:2410.23997v2 Announce Type: replace Abstract: Maximal sets of mutually unbiased bases are useful throughout quantum physics, both in a foundational context and for applications. To date, it remains unknown if…
arXiv Quantum Physics
arXiv:2501.08079v3 Announce Type: replace Abstract: We address the characterization of genuine network nonlocal correlations, which remain highly challenging due to the non-convex nature of local correlations even in…
arXiv Quantum Physics
arXiv:2502.05228v3 Announce Type: replace Abstract: Physics-informed Neural Networks (PINNs) show that embedding physical laws directly into the learning objective can significantly enhance the efficiency and physical…
arXiv Quantum Physics
arXiv:2504.03921v2 Announce Type: replace Abstract: The interpretation of the meaning of Quantum Mechanics has faced controversy since its inception. Bell's inequalities are a touchstone in this controversy. Their…
arXiv Quantum Physics
arXiv:2504.13646v3 Announce Type: replace Abstract: Dicke superradiance describes an ensemble of $N$ permutationally invariant two-level systems collectively emitting radiation with a peak radiated intensity scaling as…
arXiv Quantum Physics
arXiv:2506.03241v2 Announce Type: replace Abstract: The Quantum Approximate Optimization Algorithm (QAOA) is a variational ansatz that resembles the Trotterized dynamics of a Quantum Annealing (QA) protocol. This work…
arXiv Quantum Physics
arXiv:2506.08107v2 Announce Type: replace Abstract: The Kirkwood-Dirac (KD) distribution has recently emerged as a powerful quasiprobability framework with wide-ranging applications in quantum information processing…
arXiv Quantum Physics
arXiv:2506.10308v2 Announce Type: replace Abstract: Coupled Lindblad pseudomode theory is a promising approach for simulating non-Markovian quantum dynamics on both classical and quantum platforms, with dynamics that…
arXiv Quantum Physics
arXiv:2506.15014v5 Announce Type: replace Abstract: Understanding physical phenomena at the intersection of quantum mechanics and general relativity remains a major challenge in modern physics. While various…
arXiv Quantum Physics
arXiv:2507.03689v4 Announce Type: replace Abstract: Quantum processors may enhance machine learning by mapping high-dimensional data onto quantum systems for processing. Conventional feature maps, for encoding data onto…
arXiv Quantum Physics
arXiv:2508.04892v2 Announce Type: replace Abstract: We propose a universal gate set for quantum computing that operates in the presence of decoherence without the overhead of active error correction. We show that a…
arXiv Quantum Physics
arXiv:2508.10526v2 Announce Type: replace Abstract: Dynamical mean-field theory (DMFT) is a useful tool to analyze models of strongly correlated fermions like the Hubbard model. In DMFT, the lattice of the model is…
arXiv Quantum Physics
arXiv:2508.12383v2 Announce Type: replace Abstract: Physical reservoir computing provides a powerful machine learning paradigm that exploits nonlinear physical dynamics for efficient information processing. By…
arXiv Quantum Physics
arXiv:2508.14011v2 Announce Type: replace Abstract: Precise suites of benchmarks are required to assess the progress of early fault-tolerant quantum computers at economically impactful applications such as…
arXiv Quantum Physics
arXiv:2509.14329v3 Announce Type: replace Abstract: Repeated local measurements typically have adversarial effects on entangling unitary dynamics, as local measurements usually degrade entanglement. However, recent…
arXiv Quantum Physics
arXiv:2509.25159v2 Announce Type: replace Abstract: We analyze noise in a quantum-enhanced fiber optic gyroscope (FOG), focusing on one of the leading sources of phase uncertainty - uncorrelated photon saturation.…
arXiv Quantum Physics
arXiv:2509.25327v5 Announce Type: replace Abstract: We establish the conditions under which a conservation law associated with a non-invertible operator may be realized as a symmetry in quantum physics. As established…
arXiv Quantum Physics
arXiv:2510.10394v2 Announce Type: replace Abstract: We introduce a framework for implementing quantum operations as steady states of a subsystem in an extended Hilbert space. Each operation has a spectral criterion for…
arXiv Quantum Physics
arXiv:2510.15175v3 Announce Type: replace Abstract: We show that chaos-assisted tunneling (CAT) imposes an intrinsic limit to the protection of Kerr-cat qubits. In the static effective description, tunneling between the…
arXiv Quantum Physics
arXiv:2510.24082v3 Announce Type: replace Abstract: High-fidelity qubit readout is a fundamental requirement for practical quantum computing systems. In this work, we investigate methods to enhance the measurement…
arXiv Quantum Physics
arXiv:2511.11428v2 Announce Type: replace Abstract: The potential of solid-state quantum emitters for applications critically depends on several key figures of merit. One of the most important is the quantum coherence…
arXiv Quantum Physics
arXiv:2511.14840v2 Announce Type: replace Abstract: We introduce an intrinsic formulation of quantum error correction based on representation theory, in which error-protection structure is encoded directly in a unitary…
arXiv Quantum Physics
arXiv:2512.06619v2 Announce Type: replace Abstract: Noise is an important factor that influences the reliability of information acquisition, transmission, processing, and storage. In order to suppress the inevitable…
arXiv Quantum Physics
arXiv:2601.09414v2 Announce Type: replace Abstract: The open quantum Rabi model is studied in this work, with the explicit $\mathbf{A}^{2}$ term incorporated. It is shown that anisotropy provides a generic and robust…
arXiv Quantum Physics
arXiv:2602.03675v2 Announce Type: replace Abstract: Critical quantum metrology exploits the dramatic growth of the quantum Fisher information near quantum phase transitions to enhance the precision of parameter…
arXiv Quantum Physics
arXiv:2602.12685v2 Announce Type: replace Abstract: Floquet quantum error-correcting codes provide an operationally economical route to fault tolerance by dynamically generating stabilizer structures using only two-body…
arXiv Quantum Physics
arXiv:2602.22095v2 Announce Type: replace Abstract: The stochastic--quantum correspondence reinterprets quantum dynamics as arising from an underlying stochastic process on a configuration space. We generalize the…
arXiv Quantum Physics
arXiv:2603.06730v2 Announce Type: replace Abstract: Threshold estimation is central to fault-tolerant quantum computing, but the reported threshold depends not only on the code and noise model, but also on the decoder…
arXiv Quantum Physics
arXiv:2603.12076v2 Announce Type: replace Abstract: This is a book about operational probabilistic theories. The standard approach in such theories is from a time forward perspective. In this book we mostly take a time…
arXiv Quantum Physics
arXiv:2603.17955v2 Announce Type: replace Abstract: I propose a physical measurement scheme on multiple independent and identically distributed quantum objects to approach the Holevo--Nagaoka bound for quantum…
arXiv Quantum Physics
arXiv:2603.18825v2 Announce Type: replace Abstract: We review the recent quantum advantage experiments by IBM, D-Wave, and Google, focusing on cases where efficient classical simulations of the experiment were…
arXiv Quantum Physics
arXiv:2603.21283v2 Announce Type: replace Abstract: We present a compact quantum encoding of the Traveling Salesperson Problem (TSP) based on a time-register representation of tours. A candidate route is represented as…
arXiv Quantum Physics
arXiv:2308.07790v3 Announce Type: replace-cross Abstract: We theoretically investigate rapid adiabatic passage (RAP) based super-resolution microscopy in a two-level quantum dot (QD) system. The system consists of a QD…
arXiv Quantum Physics
arXiv:2407.11929v3 Announce Type: replace-cross Abstract: In a recent work we showed that the detection of the exchange of a single graviton between a massive quantum resonator and a gravitational wave can be achieved.…
arXiv Quantum Physics
arXiv:2506.06173v2 Announce Type: replace-cross Abstract: We investigate localization transitions in interacting Bose-Einstein condensates (BECs) confined in tilted optical lattices, focusing on both the continuum limit…
arXiv Quantum Physics
arXiv:2506.13760v2 Announce Type: replace-cross Abstract: Representing real-time data as a sum of complex exponentials provides a compact form that enables both denoising and extrapolation. As a fully data-driven…
arXiv Quantum Physics
arXiv:2508.15741v3 Announce Type: replace-cross Abstract: Reconfigurable photonics have rapidly become an invaluable tool for information processing. Light-based computing accelerators are promising for boosting neural…
arXiv Quantum Physics
arXiv:2509.22977v2 Announce Type: replace-cross Abstract: We study a generalization of `Yukawa models' in which Majorana fermions, interacting via all-to-all random couplings as in the Sachdev-Ye-Kitaev (SYK) model, are…
arXiv Quantum Physics
arXiv:2511.02465v2 Announce Type: replace-cross Abstract: Among the variety of quantum emitters in hexagonal boron nitride (hBN), blue-emitting color centers, or B centers, have gathered a particular interest owing to…
arXiv Quantum Physics
arXiv:2512.02401v2 Announce Type: replace-cross Abstract: Majorana bound states (MBSs), with their non-Abelian statistics and topological protection, are key candidates for fault-tolerant quantum computation. However,…
arXiv Quantum Physics
arXiv:2603.06511v2 Announce Type: replace-cross Abstract: We propose a hybrid quantum-classical algorithm for the simulation of real-time dynamics in interacting quantum field theories coupled to classical fields,…
Nature Quantum Info
npj Quantum Information, Published online: 27 March 2026; doi:10.1038/s41534-026-01223-0Improved strategies for fermionic quantum simulation with global interactions
Nature Quantum Info
npj Quantum Information, Published online: 27 March 2026; doi:10.1038/s41534-026-01217-yWhen quantum and classical models disagree: learning beyond minimum norm least square
Quantum Computing Report
A technical paper by Clémence Chevignard, Pierre-Alain Fouque, and André Schrottenloher, scheduled for EUROCRYPT 2026, describes a method to solve the Discrete Logarithm problem on 256-bit elliptic curves (ECDLP) using…
Phys.org Quantum
The nature of quantum particles has long puzzled scientists. While single-particle interference suggests that a photon can behave like a spread-out wave, a whole photon is only ever detected in one specific place.…
Phys.org Quantum
Studying and designing novel materials is a central application of quantum mechanics. Chemists, materials scientists, and physicists focus on subtle interactions in quantum materials and to uncover them they rely on…
Phys.org Quantum
Quantum computing promises to transform our world in rapid, radical and revolutionary ways: solving in seconds problems that would take classical computers years, accelerating the discovery of new medicines, creating…
Quantum Computing Report
Open Quantum Design (OQD), Western Digital (WD), and QuScript have established a collaborative "Error Correction working group" to develop a full-stack, open-source quantum computer prototype. The initiative aims to…
Quantum Computing Report
Open Quantum Design (OQD) has launched a public repository for its trapped-ion quantum computer hardware, marking a shift from open-source software into "bare metal" hardware documentation. This release includes the…
Quantum Computing Report
Researchers from the U.S. Department of Energy’s Quantum Science Center (QSC) and IBM have utilized a 50-qubit IBM Quantum Heron processor to simulate the quantum dynamics of KCuF3, a magnetic crystal. The study,…
Quantum Computing Report
Cleveland Clinic and IBM have reported the first simulation of a protein’s electronic structure using a quantum-centric supercomputing (QCSC) workflow. The research team modeled the 303-atom miniprotein Trp-cage using…
Phys.org Quantum
For the first time, a team of physicists in Austria has carried out an experiment that appears to verify the principle of indefinite causal order: an idea that suggests that timelines of events can exist in multiple…
Quantum Computing Report
Rigetti Computing (Nasdaq: RGTI) has committed up to $100 million to expand its operations in the United Kingdom, marking the company’s first major capital investment outside the United States. The primary objective is…
The Quantum Insider
Insider Brief PRESS RELEASE — Open Quantum Design (OQD) has announced a new open-source Error Correction Working Group with QuScript and WD (Western Digital, Nasdaq: WDC), the storage foundation of the AI-driven data…
Phys.org Quantum
Quantum computers, systems that process information leveraging quantum mechanical effects, could outperform classical computers on some advanced tasks. These systems rely on qubits, the fundamental units of quantum…
The Quantum Insider
Insider Brief A collaboration between IBM and academic researchers indicates that a quantum computer can reproduce experimentally measured properties of a real magnetic material, offering early evidence that today’s…
Quantum Computing Report
By Pallavi Soni In a recent geopolitical scenario, more and more people are interested in knowing how the energy, oil, and gas sectors will look in the future and how quantum will help build better opportunities for…
Phys.org Quantum
Phonons are the quantum units of mechanical vibration. They describe how motion propagates through a solid at the smallest possible scales, in much the same way that electrons describe electric currents. Because phonons…
Quantum Computing Report
By Dr. George Schwartz Silent Waves has launched its Zephyr product, a Traveling Wave Parametric Amplifier (TWPA) that physically integrates a microwave pump coupler directly into the amplifier architecture. This…
Quantum Computing Report
Atom Computing and Cisco have signed a Memorandum of Understanding (MOU) to investigate the integration of neutral-atom quantum computers into distributed quantum computing architectures. The collaboration focuses on…
Quantum Computing Report
QpiAI has reported the implementation of a high-performance quantum error correction (QEC) decoder platform for its 64-qubit Kaveri superconducting quantum processor. The system utilizes a distance-5 rotated surface…
Phys.org Quantum
Large-scale quantum computers are waiting in the wings. One of the main reasons we don't have them yet is because quantum hardware is so noisy. This isn't the type of noise you'd want to shush in a crowded theater. When…
Phys.org Quantum
A team of scientists led by the U.S. Department of Energy's (DOE) Argonne National Laboratory has identified a rare, switchable quantum property in a new type of nickel sulfide material. The discovery could have…
Phys.org Quantum
An international research team led by scientists from Skoltech has developed a method to position molecules on the surface of ultrathin materials with unprecedented precision using molecular DNA self-assembly, enabling…
Phys.org Quantum
You may not be able to hear it, but all solid materials make a sound. In fact, atoms—bound in lattices of chemical bonds—are never silent nor still: Under the placid surface of each and every object in our surroundings,…
Phys.org Quantum
Gallium nitride, a semiconductor that can operate at high voltages, temperatures, and frequencies, has enabled technologies from LED lighting to high-power electronics. Now Cornell researchers have observed a quantum…
Phys.org Quantum
The performance of quantum computers could cap out after around 1,000 qubits, according to a new analysis published in the Proceedings of the National Academy of Sciences. Through new calculations, Tim Palmer at the…
Phys.org Quantum
Quantum computers, computing systems that process information using quantum mechanical effects, could outperform classical computers on some computational tasks. These computers rely on qubits, the basic units of…
Nature Quantum Info
npj Quantum Information, Published online: 23 March 2026; doi:10.1038/s41534-026-01220-3Robust photon blockade with hybrid molecular optomechanics
Phys.org Quantum
Physicists have directly visualized the fundamental electronic building blocks of flat-band quantum materials, a class of systems in which electron motion is effectively quenched and strong interactions give rise to…
Phys.org Quantum
In new research published in Physical Review X, scientists have designed quantum control protocols that generate processes more consistent with time flowing backward than forward. The protocols—techniques to control…
Phys.org Quantum
Over the past decades, quantum scientists have introduced various technologies that operate leveraging quantum mechanical effects, including quantum sensors, computers and memory devices. Most of these technologies…
Phys.org Quantum
Quantum computers could solve certain problems that would take traditional classical computers an impractically long time to solve. At the Japan Advanced Institute of Science and Technology (JAIST), researchers are now…
Phys.org Quantum
You're late for an important appointment. Just as you are leaving your house, you realize your phone is flat. Imagine you could charge it almost instantly by exploiting the strange rules of quantum physics. That's the…
Phys.org Quantum
Quantum communication systems are emerging solutions to transmit information between devices in a network leveraging quantum mechanical phenomena, such as entanglement. Entanglement is a quantum effect that entails a…
Phys.org Quantum
Australian scientists have made a significant leap forward in energy storage technology with the world's first proof-of-concept quantum battery. Similar to conventional batteries, this quantum version charges, stores…
Phys.org Quantum
A new laser range-finding technique, inspired by quantum physics, that can measure distances under strong solar background has been demonstrated by researchers at the University of Bristol. The team has proved their…
Phys.org Quantum
For the first time, a quantum radiation reaction in strong electromagnetic fields has been demonstrated experimentally by allowing electrons to collide with an extremely intense and powerful laser beam. The research…
Phys.org Quantum
Quantum catalysts are specialized resources that enable quantum state transformations previously thought impossible, holding promise for advancements in quantum computing and thermodynamics. A recent international study…
Phys.org Quantum
For the first time, researchers have demonstrated that the properties of the perovskite family of materials can be used to create so-called quantum bits. The findings, published in the journal Nature Communications,…
Phys.org Quantum
The controlled generation of single photons is an essential element of numerous quantum technology applications, such as quantum networks and quantum computing. A research team has now demonstrated the successful…
Nature Quantum Info
npj Quantum Information, Published online: 16 March 2026; doi:10.1038/s41534-025-01116-8Discovery of ST2 centers in natural and CVD diamond
Nature Quantum Info
npj Quantum Information, Published online: 14 March 2026; doi:10.1038/s41534-026-01219-wExperimental secure multiparty computation from quantum oblivious transfer with bit commitment
Nature Quantum Info
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