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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…
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…
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 President Donald J. Trump appointed Nobel laureate John Martinis and a group of technology leaders to the President’s Council of Advisors on Science and Technology to guide U.S. science and innovation…
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…
The Quantum Insider
Insider Brief Quantum computing is no longer a distant future technology. Governments worldwide recognize its transformative potential for cryptography, drug discovery, optimization, and artificial intelligence.…
arXiv Quantum Physics
arXiv:2603.23595v1 Announce Type: new Abstract: Agreement theorems are no-go results about rational disagreement: if two agents start from a common prior and their posterior beliefs are common knowledge, they cannot…
arXiv Quantum Physics
arXiv:2603.23598v1 Announce Type: new Abstract: Quantum reference frames provide a relational description of multipartite quantum systems in which physical states and observables are defined relative to quantum…
arXiv Quantum Physics
arXiv:2603.23601v1 Announce Type: new Abstract: Given the recent interest in perspectival quantum reference frames (QRFs), we ask how quantum properties in the perspectival picture relate to their global,…
arXiv Quantum Physics
arXiv:2603.23602v1 Announce Type: new Abstract: Although quantum annealing is usually considered as a method for locating the ground states of difficult spin-glass and optimization problems, its use in approximate…
arXiv Quantum Physics
arXiv:2603.23603v1 Announce Type: new Abstract: Solid-state spin defects are promising qubits for quantum network nodes. A key challenge towards larger networks is creating defects with high yield into nanophotonic…
arXiv Quantum Physics
Quantum correlations in prepare-and-measure scenarios and their semi-device-independent applications
arXiv:2603.23604v1 Announce Type: new Abstract: A key aspect in quantum information is to understand the advantage offered by quantum systems over classical ones in communication tasks. In recent years, a fundamental…
arXiv Quantum Physics
arXiv:2603.23628v1 Announce Type: new Abstract: State cloning and state transposition are fundamental transformations which, despite being desirable, cannot be perfectly implemented in quantum theory. In this work, we…
arXiv Quantum Physics
arXiv:2603.23636v1 Announce Type: new Abstract: Fluxonium superconducting qubits have demonstrated long coherence times and high single- and two-qubit gate fidelities, making them a favorable building block for…
arXiv Quantum Physics
arXiv:2603.23641v1 Announce Type: new Abstract: We present a comprehensive and self-contained framework for the efficient classical simulation of Clifford circuits acting on $d$-dimensional qudits, including realistic…
arXiv Quantum Physics
arXiv:2603.23656v1 Announce Type: new Abstract: We establish an exact information-geometric inequality that remains valid regardless of the underlying dynamics, encompassing both Markovian and non-Markovian evolutions…
arXiv Quantum Physics
arXiv:2603.23718v1 Announce Type: new Abstract: Recent comparisons of quantum repeater protocols have highlighted the strong near-term potential of multiplexed two-way architectures for long-distance quantum…
arXiv Quantum Physics
arXiv:2603.23774v1 Announce Type: new Abstract: A quantum particle on a circle in a quadratic potential exhibits a spectrum that is not harmonic, despite having all algebraic properties of the quantum harmonic…
arXiv Quantum Physics
arXiv:2603.23798v1 Announce Type: new Abstract: We introduce the architecture and timing algorithm to realize a time-bin-encoded quantum photonic neural network (QPNN): a reconfigurable nonlinear photonic circuit…
arXiv Quantum Physics
arXiv:2603.23804v1 Announce Type: new Abstract: Dephasing noise is a ubiquitous source of decoherence in current atomic sensors. We address the problem of entanglement-assisted frequency estimation subject to classical…
arXiv Quantum Physics
arXiv:2603.23813v1 Announce Type: new Abstract: The mathematical rules used to handle systems of identical quantum particles bring into question whether the elementary constituents of matter, such as electrons, have the…
arXiv Quantum Physics
arXiv:2603.23892v1 Announce Type: new Abstract: Graph states are a key resource for measurement-based quantum computation and quantum networking, but state-preparation costs limit their practical use. Graph states…
arXiv Quantum Physics
arXiv:2603.23936v1 Announce Type: new Abstract: Quantum computers, currently in the noisy intermediate-scale quantum (NISQ) era, have started to provide scientists with a novel tool to explore quantum physics and…
arXiv Quantum Physics
arXiv:2603.23999v1 Announce Type: new Abstract: Nonadiabatic holonomic quantum computation (NHQC) offers intrinsic resilience to certain control imperfections. However, conventional nonadiabatic holonomic protocols are…
arXiv Quantum Physics
arXiv:2603.24017v1 Announce Type: new Abstract: We suggest a tight inequality for norms in $d$-dimensional space $l_p $ which has simple formulation but appears hard to prove. We give a proof for $d=3$ and provide a…
arXiv Quantum Physics
arXiv:2603.24032v1 Announce Type: new Abstract: Exceptional points (EPs) in non-Hermitian systems give rise to enhanced sensitivity and chiral state transfer, which are important for quantum technologies. Although…
arXiv Quantum Physics
arXiv:2603.24035v1 Announce Type: new Abstract: Quantum probes that enable enhanced exploration and characterization of complex systems are central to modern science, spanning applications from biology to astrophysics…
arXiv Quantum Physics
arXiv:2603.24067v1 Announce Type: new Abstract: We investigate the quantum evolution of the pump field in second-harmonic generation under strong pump depletion. Starting from a coherent state, the pump develops a…
arXiv Quantum Physics
arXiv:2603.24069v1 Announce Type: new Abstract: Quantum circuits that generate coherent superpositions of stochastic processes are key to many downstream quantum-accelerated tasks, such as risk analysis, importance…
arXiv Quantum Physics
arXiv:2603.24070v1 Announce Type: new Abstract: Miniaturized quantum light sources that operate directly in optical fibers are an attractive platform for optical quantum technologies. However, most miniaturized…
arXiv Quantum Physics
arXiv:2603.24121v1 Announce Type: new Abstract: We investigate the entanglement dynamics of two giant atoms coupled to a common waveguide. By introducing additional phase modulation at each coupling point, every photon…
arXiv Quantum Physics
arXiv:2603.24140v1 Announce Type: new Abstract: This paper provides a historical analysis of the IEEE CEC Single Objective Optimization competition results (2010-2024). We analyze how benchmark functions shaped winning…
arXiv Quantum Physics
arXiv:2603.24196v1 Announce Type: new Abstract: In scientific computing, the formulation of numerical discretisations of partial differential equations (PDEs) as untrained convolutional layers within Convolutional…
arXiv Quantum Physics
arXiv:2603.24205v1 Announce Type: new Abstract: The prevalence of quantum crosstalk is an important barrier to scaling frequency-addressable qubit architectures, with dynamic crosstalk being particularly difficult to…
arXiv Quantum Physics
arXiv:2603.24206v1 Announce Type: new Abstract: Hybrid quantum-classical workflows combine quantum processing units (QPUs) with classical hardware to address computational tasks that are challenging or infeasible for…
arXiv Quantum Physics
arXiv:2603.24225v1 Announce Type: new Abstract: Coexistence of different dynamical phases is a hallmark of glassy dynamics. This is well-studied in classical systems where the underlying theoretical framework is that of…
arXiv Quantum Physics
arXiv:2603.24237v1 Announce Type: new Abstract: Atom loss is a dominant error source in neutral-atom quantum processors, yet its correlated structure remains largely unexploited by existing quantum error correction…
arXiv Quantum Physics
arXiv:2603.24279v1 Announce Type: new Abstract: The Talbot effect -- a near-field diffraction phenomenon in which a periodic wavefront self-images at regular distances -- can be transposed to the time--frequency domain…
arXiv Quantum Physics
arXiv:2603.24290v1 Announce Type: new Abstract: The partial trace is commonly introduced in quantum mechanics as an algebraic operation used to define reduced states of composite systems. However, the probabilistic…
arXiv Quantum Physics
arXiv:2603.24298v1 Announce Type: new Abstract: The ground state search problem is central to quantum computing, with applications spanning quantum chemistry, condensed matter physics, and optimization. The Variational…
arXiv Quantum Physics
arXiv:2603.24342v1 Announce Type: new Abstract: Decoherence in many-body quantum systems can give rise to intrinsically mixed-state phases and phase transitions beyond the pure-state paradigm. Here we study the $(2+1)$D…
arXiv Quantum Physics
arXiv:2603.24345v1 Announce Type: new Abstract: The performance of quantum processors in the noisy intermediate-scale quantum (NISQ) era is severely constrained by environmental noise and other uncertainties. While the…
arXiv Quantum Physics
arXiv:2603.24351v1 Announce Type: new Abstract: Spontaneous parametric down-conversion (SPDC) in subwavelength nonlinear nanostructures is emerging as a promising source of quantum light, owing to its intrinsic…
arXiv Quantum Physics
arXiv:2603.24377v1 Announce Type: new Abstract: Symmetries are ubiquitous in physics and play a pivotal role in light-matter interactions, where they determine the selection rules governing allowed atomic transitions…
arXiv Quantum Physics
arXiv:2603.24441v1 Announce Type: new Abstract: We develop a new benchmarking scheme for the Decoded Quantum Interferometry (DQI) algorithm quantifying the number of quantum gates required to obtain an optimal solution…
arXiv Quantum Physics
arXiv:2603.24444v1 Announce Type: new Abstract: We introduce a model of quantum walkers interacting with a magnetic impurity localized at the origin. First, we study a model of a single quantum walker interacting with a…
arXiv Quantum Physics
arXiv:2603.24478v1 Announce Type: new Abstract: Quantum devices featuring mid-circuit measurement and reset capabilities, such as quantum computers and dual-species Rydberg quantum simulators, enable the realization of…
arXiv Quantum Physics
arXiv:2603.24522v1 Announce Type: new Abstract: The quantum Mpemba effect is a phenomenon characterized by an exponential relaxation from a non-equililbrium state to a steady state. This effect was predicted with an…
arXiv Quantum Physics
arXiv:2603.24557v1 Announce Type: new Abstract: Classical thermodynamics admits a geometric formulation in which work is associated with areas enclosed by cycles in state space. Whether an analogous structure persists…
arXiv Quantum Physics
arXiv:2603.24573v1 Announce Type: new Abstract: We provide a recursively defined sequence of flag circuits which will detect logical errors induced by non-fault-tolerant $R_{\overline{Z}}(\frac{\pi}{2^l})$ gates on CSS…
arXiv Quantum Physics
arXiv:2603.24588v1 Announce Type: new Abstract: We construct nested Calderbank-Shor-Steane code pairs with non-vanishing coding rate from Hsu-Anastasopoulos codes and MacKay-Neal codes. In the fixed-degree regime, we…
arXiv Quantum Physics
arXiv:2603.23505v1 Announce Type: cross Abstract: HyperFrog is an experimental post-quantum Key Encapsulation Mechanism that explores a variant of the Learning With Errors (LWE) design space in which the secret is not…
arXiv Quantum Physics
arXiv:2603.23599v1 Announce Type: cross Abstract: We propose a quantum sensing protocol for coupled qubit-oscillator systems that surpasses the standard quantum limit by exploiting a geometric phase for dark matter…
arXiv Quantum Physics
arXiv:2603.23616v1 Announce Type: cross Abstract: Recent work has proposed fading ergodicity as a mechanism for many-body ergodicity breaking. Here, we show that two paradigmatic random matrix ensembles -- the…
arXiv Quantum Physics
arXiv:2603.23693v1 Announce Type: cross Abstract: Two-dimensional topological insulators feature helical edge states that are remarkably resistant to disorder, making them appeal for energy-efficient electronics and…
arXiv Quantum Physics
arXiv:2603.23743v1 Announce Type: cross Abstract: Using a closed quantum optical coupled-dipole model, we investigate why sub-sevenfold symmetries are likely absent in the stacked-ring scaffolds of light-harvesting 2…
arXiv Quantum Physics
arXiv:2603.23758v1 Announce Type: cross Abstract: Mixed quantum-classical models are widely used to reduce the computational cost of fully quantum simulations. However, their general applicability across different…
arXiv Quantum Physics
arXiv:2603.23887v1 Announce Type: cross Abstract: In recent years, the application of machine learning to physics has been actively explored. In this paper, we study a method for estimating the ground-state energy of…
arXiv Quantum Physics
arXiv:2603.23931v1 Announce Type: cross Abstract: We develop a comprehensive thermodynamic description for a zero-temperature boson gas in curved spacetime, integrating energy conservation with information-theoretic…
arXiv Quantum Physics
arXiv:2603.23948v1 Announce Type: cross Abstract: We simulate the thermalization dynamics for minimally truncated SU(2) pure gauge theory on linear plaquette chains with up to 151 plaquettes using IBM quantum computers.…
arXiv Quantum Physics
Mixed-State Topological Phase: Quantized Topological Order Parameter and Lieb-Schultz-Mattis Theorem
arXiv:2603.24031v1 Announce Type: cross Abstract: We investigate the extension of pure-state symmetry protected topological phases to mixed-state regime with a strong U(1) and a weak $\mathbb{Z}_2$ symmetries in…
arXiv Quantum Physics
arXiv:2603.24052v1 Announce Type: cross Abstract: We present a system for generating arbitrary, triaxial magnetic waveforms with a spectral content spanning from DC to tens of kHz, a critical capability for quantum…
arXiv Quantum Physics
arXiv:2603.24183v1 Announce Type: cross Abstract: Thermodynamic computing harnesses the relaxation dynamics of physical systems to perform matrix operations. A key limitation of such approaches is the often long…
arXiv Quantum Physics
arXiv:2603.24223v1 Announce Type: cross Abstract: We investigate how Restricted Boltzmann Machines (RBMs) encode antiferromagnetic order when trained as variational ans\"atze for one-dimensional Heisenberg spin rings…
arXiv Quantum Physics
arXiv:2603.24230v1 Announce Type: cross Abstract: Spin-phonon interactions have a dual role in emerging spin-based quantum technologies. While they can be a limitation to device performance through decoherence, they…
arXiv Quantum Physics
arXiv:2603.24253v1 Announce Type: cross Abstract: In projected descriptions of quantum dynamics, the importance of an eliminated degree of freedom is routinely assessed by deleting it and measuring the system's…
arXiv Quantum Physics
arXiv:2603.24311v1 Announce Type: cross Abstract: Quantum magnets in the $M\mathrm{Nb_2O_6}$ and BaCo$_2$V$_2$O$_8$ families realise frustrated transverse-field Ising models whose competing ferromagnetic and…
arXiv Quantum Physics
arXiv:2603.24347v1 Announce Type: cross Abstract: Our electronic structure theory for crystalline solids is commonly built on the periodic potential assumption $V(\mathbf r)=V(\mathbf r+\mathbf R)$ for every lattice…
arXiv Quantum Physics
arXiv:2603.24379v1 Announce Type: cross Abstract: Hybrid superconductor/semiconductor devices play a crucial role in advancing quantum science and technology by merging the properties of superconductors and…
arXiv Quantum Physics
arXiv:2603.24429v1 Announce Type: cross Abstract: One of the most intriguing proposals for wavefunction collapse is the Diosi Penrose model, in which collapse is driven by stochastic fluctuations of the Newtonian…
arXiv Quantum Physics
arXiv:2603.24547v1 Announce Type: cross Abstract: We investigate the impact of an induced mass term $\Delta$ on the current density in graphene subjected to a space- and time-dependent periodic potential $U(x,t)$. By…
arXiv Quantum Physics
arXiv:2603.24590v1 Announce Type: cross Abstract: We present a theoretical investigation on the electronic structure and properties of radium monochalcogenides, with chalcogens O, S, and Se, as well as the ionic species…
arXiv Quantum Physics
arXiv:2008.11751v4 Announce Type: replace Abstract: Quantum simulation has wide applications in quantum chemistry and physics. Recently, scientists have begun exploring the use of randomized methods for accelerating…
arXiv Quantum Physics
arXiv:2312.03083v3 Announce Type: replace Abstract: The variational quantum eigensolver (VQE) is a hybrid quantum-classical variational algorithm that produces an upper-bound estimate of the ground-state energy of a…
arXiv Quantum Physics
arXiv:2407.10478v4 Announce Type: replace Abstract: In quantum mechanics, the Schrieffer--Wolff (SW) transformation (also called quasi-degenerate perturbation theory) is known as an approximative method to reduce the…
arXiv Quantum Physics
arXiv:2408.00079v3 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:2408.01439v4 Announce Type: replace Abstract: Quantum signal processing and quantum singular value transformation are powerful tools to implement polynomial transformations of block-encoded matrices on quantum…
arXiv Quantum Physics
arXiv:2502.19185v3 Announce Type: replace Abstract: Anderson localization physics features three fundamental types of eigenstates: extended, localized, and critical, with the third one exhibiting the exotic properties…
arXiv Quantum Physics
arXiv:2503.06695v2 Announce Type: replace Abstract: Error mitigation is essential for extracting reliable results from quantum computations performed on noisy intermediate-scale quantum hardware. Here we introduce…
arXiv Quantum Physics
arXiv:2504.05860v2 Announce Type: replace Abstract: We introduce a functional matrix product state (FMPS) based method for simulating the real-space representation of continuous-variable (CV) quantum computation. This…
arXiv Quantum Physics
arXiv:2504.15460v3 Announce Type: replace Abstract: Engineering design processes involve iterative design evaluations requiring numerous computationally intensive numerical simulations. Quantum algorithms promise…
arXiv Quantum Physics
arXiv:2505.22629v2 Announce Type: replace Abstract: To successfully perform quantum computations, it is often necessary to first accurately characterize the noise in the underlying hardware. However, it is well known…
arXiv Quantum Physics
arXiv:2506.12138v3 Announce Type: replace Abstract: Entangled many-body states are a key resource for quantum technologies. Yet their preparation through analog control of interacting quantum systems is often hindered…
arXiv Quantum Physics
arXiv:2507.01229v3 Announce Type: replace Abstract: We propose a time- and wavelength-multiplexed remote atom-atom entanglement generation protocol based on cavity-assisted photon scattering (CAPS). This is designed to…
arXiv Quantum Physics
arXiv:2507.02201v2 Announce Type: replace Abstract: Schr\"odinger-cat (SC) states are an important resource for continuous-variable quantum computing and quantum metrology. In our previous work [JOSA B, 42, 2 (2025)],…
arXiv Quantum Physics
arXiv:2507.06303v2 Announce Type: replace Abstract: The joint state of a continuously monitored quantum system and the classical filtered measurement record has recently been shown to be described by a quantum…
arXiv Quantum Physics
arXiv:2508.20647v3 Announce Type: replace Abstract: We introduce a new family of multi-mode, rotationally symmetric bosonic codes inspired by the group-theoretic framework of [Phys. Rev. Lett. 133, 240603 (2024)]. Such…
arXiv Quantum Physics
arXiv:2509.02180v2 Announce Type: replace Abstract: The dynamics of quantum correlations are central to understanding many physical properties of quantum systems. Here we experimentally study the correlation dynamics…
arXiv Quantum Physics
arXiv:2509.14196v2 Announce Type: replace Abstract: The Fermi-Hubbard model is a fundamental model in condensed matter physics that describes strongly correlated electrons. On the other hand, quantum computers are…
arXiv Quantum Physics
arXiv:2510.08507v2 Announce Type: replace Abstract: Quantum theory is in principle compatible with scenarios where physical processes occur in an indefinite order, potentially yielding advantages in a broad range of…
arXiv Quantum Physics
arXiv:2510.11797v2 Announce Type: replace Abstract: Variational wavefunctions offer a practical route around the exponential complexity of many-body Hilbert spaces, but their expressive power is often sharply…
arXiv Quantum Physics
arXiv:2512.13110v2 Announce Type: replace Abstract: We investigate the entanglement properties in a generalized quantum cluster model under periodic boundary condition. By evaluating the quantum conditional mutual…
arXiv Quantum Physics
arXiv:2512.24245v2 Announce Type: replace Abstract: Reliable optical quantum memory is limited by real-world imperfections such as disordered coupling and detuning. Existing studies mostly address these factors…
arXiv Quantum Physics
arXiv:2512.24685v3 Announce Type: replace Abstract: Quantum advantage is widely understood to rely on key quantum resources beyond entanglement, among which nonstabilizerness (quantum ``magic'') plays a central role in…
arXiv Quantum Physics
arXiv:2601.10203v2 Announce Type: replace Abstract: Pre-execution calibration is a major bottleneck for operating superconducting quantum processors, and qubit frequency allocation is especially challenging due to…
arXiv Quantum Physics
arXiv:2602.17479v4 Announce Type: replace Abstract: Quantum optimization has gained increasing attention as advances in quantum hardware enable the exploration of problem instances approaching real-world scale. Among…
arXiv Quantum Physics
arXiv:2603.01649v2 Announce Type: replace Abstract: The exchange of quantum information among nodes in a quantum network is one of the main challenges in modern technologies. Superconducting waveguide QED networks hold…
arXiv Quantum Physics
arXiv:2603.03071v2 Announce Type: replace Abstract: Classical deep networks are effective because depth enables adaptive geometric deformation of data representations. In quantum neural networks (QNNs), however, depth…
arXiv Quantum Physics
arXiv:2603.03803v2 Announce Type: replace Abstract: Amplitude encoding of real-world data on quantum computers is often the workflow bottleneck: direct amplitude encoding scales poorly with input size and can offset any…
arXiv Quantum Physics
arXiv:2603.13183v2 Announce Type: replace Abstract: The recent realization of millisecond-scale coherence with tantalum-on-silicon transmon qubits showed that depositing the Al/AlOx/Al Josephson junction in a high…
arXiv Quantum Physics
arXiv:2603.15608v2 Announce Type: replace Abstract: A central goal of quantum computation is the realistic simulation of quantum materials. Although quantum processors have advanced rapidly in scale and fidelity, it has…
arXiv Quantum Physics
arXiv:2603.16389v3 Announce Type: replace Abstract: As quantum computing advances toward fault-tolerance through quantum error correction, modular chiplet architectures have emerged to provide the massive qubit counts…
arXiv Quantum Physics
arXiv:2603.16527v3 Announce Type: replace Abstract: Quantum state preparation is a central primitive in many quantum algorithms, yet it is generally resource intensive, with efficient constructions known only for…
arXiv Quantum Physics
arXiv:2603.16988v4 Announce Type: replace Abstract: We present a computational survey of Kochen-Specker (KS) uncolorability in three-dimensional Hilbert space across two-symbol coordinate alphabets $\mathcal{A} = \{0,…
arXiv Quantum Physics
arXiv:2603.20372v2 Announce Type: replace Abstract: Low-dimensional materials exhibit exotic properties due to enhanced quantum fluctuations, making the understanding of their microscopic origin central in condensed…
arXiv Quantum Physics
arXiv:2603.21540v2 Announce Type: replace Abstract: Non-equilibrium dynamics of strongly and rapidly driven quantum many-body systems is poorly understood beyond periodic driving, where heating is exponentially slow in…
arXiv Quantum Physics
arXiv:2410.17198v2 Announce Type: replace-cross Abstract: We consider the problem of shared randomness-assisted multiple access channel (MAC) simulation for product inputs and characterize the one-shot communication…
arXiv Quantum Physics
arXiv:2411.16603v3 Announce Type: replace-cross Abstract: Quantum state tomography serves as a key tool for identifying quantum states generated in quantum computers and simulators, typically involving local operations…
arXiv Quantum Physics
arXiv:2504.10580v3 Announce Type: replace-cross Abstract: We study the effect of quenched disorder on the non-Hermitian skin effect in systems that conserve a U(1) charge and its associated multipole moments. In…
arXiv Quantum Physics
arXiv:2507.14690v2 Announce Type: replace-cross Abstract: We solve the nuclear two-body and three-body bound states via quantum simulations of pionless effective field theory on a lattice in position space. While the…
arXiv Quantum Physics
arXiv:2508.02819v2 Announce Type: replace-cross Abstract: We investigate signatures of quantum chaos in the mixed-field quantum Ising model on finite-size Erd\H{o}s-R\'enyi graphs using probes scalable on near-term…
arXiv Quantum Physics
arXiv:2509.19436v2 Announce Type: replace-cross Abstract: In twisted bilayer graphene, a unified understanding of the mechanisms governing temperature-dependent electronic spectra and thermodynamic properties remains…
arXiv Quantum Physics
arXiv:2510.07504v2 Announce Type: replace-cross Abstract: In the framework of quantum mechanics over a quadratic extension of the ultrametric field of p-adic numbers, we introduce a notion of tensor product of p-adic…
arXiv Quantum Physics
arXiv:2512.01303v2 Announce Type: replace-cross Abstract: The ability to switch and program molecular transitions via deterministically located plasmonic nanoantennae presents opportunities for wide spectrum of…
arXiv Quantum Physics
arXiv:2512.09038v2 Announce Type: replace-cross Abstract: We show that introducing a localized leak in Floquet systems with time-reversal symmetry leads to universal spectral correlations governed by the non-Hermitian…
arXiv Quantum Physics
arXiv:2512.20608v2 Announce Type: replace-cross Abstract: We propose a ground state entanglement probe for gapped, two-dimensional quantum many-body systems that involves taking powers of reduced density matrices in a…
arXiv Quantum Physics
arXiv:2512.23591v3 Announce Type: replace-cross Abstract: MulAtoLEG (Multi-Atom Liouville Equation Generator) is an open-source Mathematica package for generating Liouville superoperators and Liouville equations,…
arXiv Quantum Physics
arXiv:2602.02292v2 Announce Type: replace-cross Abstract: Collective excitations of Fractional Quantum Hall (FQH) liquids at long wavelengths are thought to be of a generally covariant geometric nature, governed by…
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…
The Quantum Insider
By Matt Cimaglia Spending time in Washington this week, I was struck by how much the conversation around quantum has matured. There is growing alignment across government and industry that the technology is moving…
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…
The Quantum Insider
Insider Brief PRESS RELEASE — Atom Computing today announced the signing of a Memorandum of Understanding (MOU) with Cisco to explore how neutral-atom quantum computers can be linked together through quantum networks to…
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…
The Quantum Insider
Insider Brief Google is accelerating its timeline to prepare for the risks posed by quantum computing, setting a target of 2029 for transitioning to post-quantum cryptography across its systems and urging the broader…
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…
The Quantum Insider
Guest Post In the second quarter, Brussels is expected to release the first draft for a Quantum Act, a document that should pave the way for Europe to become the leader in quantum technology. To stand a real chance…
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…
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…
Phys.org Quantum
Superconducting materials could play a crucial role in the energy-efficient applications of the future. However, several technical challenges still stand in the way of their practical use. Now, researchers at Chalmers…
Phys.org Quantum
Electrons are tiny and constantly in motion. How they behave in a crystal lattice determines key material properties: electrical conductivity, magnetism, or novel quantum effects. Anyone aiming to develop the…
Phys.org Quantum
Fleeting electron-hole pairs are giving scientists a new window into optimizing light-emitting devices (LEDs). Using quantum magnetic resonance, Osaka Metropolitan University researchers have discovered how shifting…
Phys.org Quantum
Although the potential applications of quantum computing are widespread, a new feasibility study suggests quantum computers still face major hurdles in solving quantum chemistry problems. The study, published in…