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 6
Spatial Cost of Recovering a Fusion Qubit in a Critical Spin Chain
Vanishing-error recovery of a fusion qubit from a fixed-sector ground doublet of four Kramers--Wannier defects in a critical Ising chain requires at least the shorter three-defect span of physical…Resetting a Superconducting Qubit with a Compact Colder Resistive Dissipator below the Qubit Frequency
Efficient qubit reset has become a key requirement for large-scale superconducting quantum processors, as initialization fidelity increasingly lags behind gate performance and quantum error…Hyperbolic Nanocavities for Single-Molecule Vibrational Strong Coupling
Hyperbolic phonon polaritons (HPhPs) in low-loss anisotropic materials such as hexagonal boron nitride (hBN) provide extreme sub-diffractional field confinement in the mid-infrared, making them…Connection of surface code patches based on entanglement distillation without postselection
Distributed quantum computing is a promising approach for overcoming the scalability limitations of fault-tolerant quantum computing.Bridging Pulse and Circuit Levels: A Geometric Framework for Deterministic Error Suppression
Quantum errors in noisy environments remain a major obstacle to advancing quantum information technology.Spatial Path Superposition: A No-Cloning Perspective on MIMO-Inspired Spatial Diversity
Spatial diversity is a key mechanism in classical Multi-Input Multi-Output (MIMO) communications, where multiple propagation alternatives provide redundant observations that improve reliability in…Semi-Device-Independent Certification of multi-qubit Entangled Basis Measurement
The entangled basis measurement plays a pivotal role in fundamental information-processing tasks, such as dense coding, quantum teleportation, and entanglement swapping.Improved Exact and Approximate Quantum Fourier Transforms from Multiplication
In the world of quantum computing, quantum Fourier transform (QFT) has been one of the most important subroutines for quantum algorithms, as exemplified by Shor's factoring algorithms and phase…Kardar--Parisi--Zhang density hydrodynamics in a coherent XXZ--ASEP Lindbladian
Coherent interactions can generate quantum correlations without changing a stationary density current.Constraining Lorentz Invariance Violation via Precision Atomic Spectroscopy
This paper investigates Lorentz violation arising from quantum gravity effects in electronic and muonic hydrogen atoms.Helium States in a CAS(2,2) Subspace Inspired by Quantum Photonics
We present a four-mode Fock-state photonics implementation of the variational quantum deflation (VQD) algorithm to calculate the ground-state and excited-state energies for the neutral helium atom…Beyond the Gap: What Imaginary-Time Evolution Reveals About the Edge of the Continuum
The spectral gap, the energy separating the ground state from the first excitation, governs many quantum phenomena, yet it is far harder to compute than the ground state.Universally Certifying Partially Self-Correcting Quantum Memories in 3D Translation-Invariant Stabilizer Codes
Achieving passive protection of quantum information at finite temperature is a central problem at the intersection of quantum information and quantum many-body physics.Quasi-Normal Modes and thermalization in integrable Quantum Field Theories from the Thermodynamic Bethe Ansatz
We propose a Thermodynamic Bethe Ansatz (TBA) approach for describing thermalization in integrable quantum field theories.Quantum Advantage needs Multiple Perspectives
The origin of the quantum speedup is a topic of ongoing research.A Variational Quantum Algorithm for Multi-Skill Project Scheduling
Job scheduling is an NP-hard optimization problem with clear industrial relevance.Stability of energy gap of macroscopic quantum matter
In quantum many-body physics and quantum field theory, it is often assumed that gapped systems remain gapped under sufficiently weak local perturbations.A Tensor-Network Chebyshev-Galerkin Method for Boundary-Value Problems in Computational Mechanics
Quantum-inspired numerical methods for partial differential equations represent discretized fields and operators as quantics tensor trains (QTT), so that their cost depends on how compressible the…Spectral properties of twisted soft waveguides
We discuss a model of a soft waveguide described by Schrödinger operator whose potential is a twisted straight channel of non-circular profile.Parrondo's paradox for three discrete-time quantum walks with distinct shift operators
Parrondo's paradox describes a surprising phenomenon in which certain combinations of biased quantum walks result in an unexpected reversal of their bias direction.