Quantum Physics · Physics & Astronomy
Quantum Physics
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3,630 papers, from 4 September 2026 to 5 November 2026: 3,630 arXiv preprints.
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Newest papers, page 147
Constructing and Probing Three-Boundary Booklet Geometries
Partially entangled thermal states (PETS) provide semiclassical families of black-hole microstates prepared through heavy shell insertions.Minimal building blocks for molecular quantum circuits with exact spin symmetry
Preserving particle number and spin helps quantum circuits target molecular electronic states, but does not guarantee access to every state with the required quantum numbers.Stability of isometries of quantum states
We prove dimension-independent Hyers-Ulam stability for surjective approximate isometries of the positive trace-class cone in both the trace and Bures metrics.SQUARE: Structured Quantum Representation Adapters as Compact Quadratic Feature Maps for Frozen Language Models
Frozen language models (LMs) are increasingly used as fixed feature extractors for downstream reranking, scoring, and preference modeling, raising a practical question: how should a compact module…Arbitrary high-dimensional entanglement purification with the superposition of paths
High-dimensional quantum entanglement offers significant advantages over its two-dimensional counterparts in various quantum information processing tasks.Second-order coherence properties of ultrafast polariton dynamics in plasmonic lattices
The first-order coherence properties of strongly coupled systems supporting polariton lasing and Bose-Einstein condensation (BEC) have been thoroughly studied and show consistent results.Margenau-Hill distribution as a Necessary and Sufficient Signature of Measurement Incompatibility
Measurement incompatibility and the negativity of quasi-probability distributions both demonstrate the signature of nonclassicality.A quantum thermal machine surpassing the classical thermodynamic limit on precision
Precision in nonequilibrium processes comes at a thermodynamic cost: suppressing fluctuations generally requires increased dissipation.Optically-Induced Modulation and Programming of Diamond Photonic Cavities
Single-crystal diamond combines exceptional optical, thermal, and mechanical properties while hosting optically addressable and spin-coherent colour centres, making it a promising platform for…Adaptive Rotation for iSOMA: Geometry, Benchmarking, and Noise Robustness in Variational Quantum Objectives
We study whether the coordinate dependence of the improved Self-Organizing Migrating Algorithm (iSOMA) can be reduced while retaining its inexpensive leader-directed migration mechanism.Non-Canonical Quantum Otto Engine
The fast-developing quantum technology is propelling thermal machine, which lies at the heart of thermodynamics, into a new golden era.Encoding universal quantum computation into quantized Berry phases: Hardness results and classical algorithms
The Berry phase is a fundamental geometric quantity for characterizing the geometry and topology of quantum many-body systems.Optimal Entanglement Routing in Quantum Repeater Chains: Beyond Fixed Operation Order and Purification Schedule
Entanglement routing establishes entangled pairs between distant nodes of a quantum network by purifying and swapping pairs generated on elementary links.Near-Optimal Quantum Algorithm and Complexity Analysis for Riccati Problems
We develop quantum algorithms that construct block-encodings of solution matrices for continuous- and discrete-time algebraic Riccati equations (CAREs and DAREs), differential Riccati equations…Encoding and Node Choices in Transversal Fault-Tolerant Distributed Quantum Computations: An Initial Study
We compare and study different Bivariate-Bicycle (BB) encodings and node choices for distributed quantum operations such as transversal non-local CNOTs.Ultra-high-distance quantum memories from amplified qLDPC codes
A large code distance does not by itself guarantee a well-protected quantum memory, as faults during syndrome extraction can propagate into correlated data errors.Approximate majorization and high-order capacity of quantum depolarizing channels
A central challenge in quantum information theory is to determine whether entanglement provides an advantage for information processing when coherent operations across multiple channel uses are…L-band single-photon generation from a cavity-coupled silicon C-center
Monolithic integration of single-photon sources into silicon photonics offers a compelling solution for realizing scalable quantum telecommunication architectures.Directional transfer from coherence to longitudinal polarization and algebraic storage in a transmon with Markovian dephasing and a glassy environment: A non-Markovian fractional renewal model
We develop a completely positive and trace-preserving non-Markovian transmon model with longitudinal Markovian dephasing and transverse renewal events motivated by a glassy two-level-system…Quantum Leakage Resilience of Shamir Secret Sharing
We initiate the study of quantum leakage resilience of unmodified Shamir secret sharing over prime fields.