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 69
Optimal robust single-qubit gates in superconducting quantum processors
Fault-tolerant quantum computing requires high-fidelity quantum gates that are resilient to control errors and device imperfections.Generalized Svetlichny Inequalities as a Cross-Platform Benchmark for Quantum Processors
A cross-platform benchmark should be device-independent yet sensitive to imperfections accumulated during execution.Concurrent Entanglement Purification Scheduling in Dynamic Quantum Networks
Quantum networks must deliver end-to-end entanglement whose fidelity meets application requirements, which typically requires entanglement purification along multi-hop paths.Symmetry and Quantum Interference in the Attosecond Domain
In this review, we examine the interplay of symmetry and quantum interference in the attosecond domain primarily through one- and two-electron photoelectron momentum distributions.Singular wave functions and quantum collapse in inverse-power potentials
Quantum collapse (QC) occurs under the action of the inverse-power potential U(r)=-U_{0}/(2r^{n}) in the framework of the Schroedinger equation.Agent-assisted experimental strategy transfer across quantum processors
Progress in quantum hardware requires a growing volume of experiments across diverse devices, straining the capacity of human experts.Multiplicative Semidefinite Programming Upper Bounds on Quantum No-Signalling-Assisted Zero-Error Capacity
We study zero-error communication and exact simulation of quantum channels assisted by quantum no-signalling correlations.Data-Driven Optimization of Seminumerical Exchange for SIMD CPUs
We present a seminumerical exchange algorithm (SNK) based on the sn-LinK method [Laqua et al., J. Chem.Displacement-noise-free gravitational-wave detector using quantum tomography of photon orbital angular momentum states
Gravitational waves (GWs) induce quantum transitions between photon orbital-angular-momentum (OAM) states with amplitudes $α_{\pm}$.Localized states of the non-Hermitian Schr{ö}dinger equation with a complex $1/r^{2}$ potential: from Efimov states to bipolarons
We study the non-Hermitian Schrödinger equation with a complex $1/r^{2}$ potential, which bridges Hermitian few-body and non-Hermitian many-body physics: a real attractive potential describes Efimov…Regret Lower Bound for Online Learning of Quantum States with Logarithmic Loss, with Applications to Quantum State Tomography and Confidence Sequences for Matrix Means
We study the problem of online learning of quantum states with logarithmic loss, which is a quantum generalization of online portfolio selection and has applications to quantum state tomography, the…Stitched surface codes: planar concatenation through GHZ corridors
We present a fault-tolerant quantum-memory architecture that concatenates four distance-t rotated surface-code patches with the [[4,2,2]] outer code, encoding two logical qubits at code distance d =…When do quantum views help? Complementary classical-quantum representations in multi-view fusion
Recent studies have reported promising results from quantum machine learning in drug discovery, healthcare, materials science and cybersecurity.Parallel Repetition for Entangled Games via Conditional Relative Entropy
We give a proof of the cubic parallel-repetition bound for finite two-player entangled games using quantum conditional relative entropy.Optimising multipartite entanglement manipulation in quantum networks
Long-range, genuine multipartite entanglement (GME) between distant parties in a quantum network is a crucial resource for distributed quantum information processing.Crossovers between Time-Bin and Energy-Time Entanglement in Homodyned Resonance Fluorescence
We theoretically investigate photonic entanglement generated by homodyning resonance fluorescence from a two-level emitter with a phase-locked laser field.Accurate gap control of 3D-integrated superconducting quantum circuits using asymmetric indium architecture and multi-angle flip-chip bonding
Flip-chip 3D integration is a key enabling technology for overcoming the routing and layout constraints of planar superconducting quantum processors, but it requires accurate and uniform control of…Casimir forces on suspended thin dielectric membranes covered with graphene
We investigate the Casimir force on thin suspended dielectric layers covered with graphene, both theoretically and experimentally.Periodic conditional measurements on a photonic chip
Quantum measurements not only extract information but also reshape quantum evolution through measurement backaction.Limits of adaptive two-way linear postprocessing in six-state quantum key distribution
Two-way classical communication improves the noise tolerance of quantum key distribution, but the limits of adaptive parity processing remain unclear.