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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Efficient Pauli Truncation from Operator Stabilizer Rényi Entropy
Operator stabilizer Rényi entropy (OSE) quantifies the magic of Heisenberg operators and serves as a diagnostic of their compressibility in the Pauli basis.Optimal quantum metrology with restricted controls
Quantum control can enhance sensing precision, but practical protocols are constrained by probe preparation and the available control resources.Observing mixed-state Uhlmann winding numbers in integrated photonic quantum walks
Integer winding numbers provide a well-established classification of topological phases protected by chiral symmetry at zero temperature, but extending this classification to thermal mixed states…Majorana corner modes and tunable braiding in an altermagnet-superconductor heterostructure
Zeeman fields are usually required for realizing and manipulating Majorana corner modes at the cost of suppressed superconducting pairing.Universal Phase Locking from Slowly Varying Inhomogeneity in Tunnel-Coupled One-Dimensional Condensates
The sine-Gordon model can be experimentally realised by tunnel-coupled one-dimensional Bose condensates.Separability and lower bounds of concurrence via symmetric measurement correlations
The detection and quantification of quantum entanglement is a central issue in quantum information science, particularly for unknown quantum states.Efficient preparation of spin-squeezed states with Grover's algorithm
We propose a scheme for preparing spin-squeezed states in an ensemble of $N$ spin-$1/2$ particles based on Grover's algorithm.Observation of Inter-Transition Interference
Many well-known quantum interference phenomena are associated with coherent superpositions of quantum states.Detecting Nonbilocal Correlations via Parameterized Elegant Joint Measurement
Quantum networks constitute a defining resource for quantum information processing; however, their nonclassical behavior is jointly governed by the choice of measurement basis and the independence…Development of time-resolved fluorescence spectroscopy using heralded emission spectroscopy for organic light-emitting materials
Organic light-emitting materials are widely used in optoelectronics and bioimaging, but sometimes conventional fluorescence spectroscopy techniques can be limited by scattering, background…Discrete quadrature spectrum of composite bosons: Weyl relation, intensity correlations, and binned homodyne detection
A composite boson made of two fermions can look elementary under one measurement and composite under another.Constrained Quantum Imaginary Time in Krylov Space
We introduce constrained quantum imaginary time evolution (CQITE), extending quantum imaginary time evolution (QITE) to constrained-search dynamics for ground-state preparation with prescribed…Multirobust Control Pulses Designed by Iterative Quantum Kolmogorov-Arnold-Moser Algorithm
We introduce a multi-robust quantum control strategy designed to suppress multilevel leakage outside the computational qubit space while simultaneously ensuring robustness against unknown…Continuous variable payload transmitter for the SPOQC mission
The continuous variable (CV) quantum key distribution (QKD) scheme enables two parties to share a secret key separated by a certain distance.Negative non-linear differential dissipation in mechanical quartz resonators
We observe negative non-linear differential dissipation in a low-frequency (32.7 kHz) miniature quartz tuning fork, representing a high-Q piezoelectric resonator, at temperatures below 0.3 K…Monopoles, Scattering and Generalized Symmetries on a Quantum Computer
Quantum computers have advanced to the stage that interesting many-body quantum phenomena can be observed.Autler-townes energy-level engineering for high-quality all-microwave qubit gate
High-fidelity entangling gates are essential for realizing large-scale fault-tolerant superconducting quantum computing, yet existing approaches are limited: frequency-tuning techniques induce…Crosstalk-Induced Row Hammer Attacks on Quantum Random Access Codes
Quantum processors remain susceptible to crosstalk-induced effects despite the continuous evolution of their underlying hardware architectures.Quantum Relative Entropy and Information Flux Resolve Wavefunction Collapse in Spacelike-Separated QED Waveguides
Resolving how first-order quantum coherence and definite measurement outcomes emerge from entangled vacuum fluctuations across spacelike-separated regions is unified here by the principle that…Quantum transport of vortex electrons in bending magnets and circular accelerators
Controlling the sizes and phase structure of single-particle wave packets in accelerators remains an experimental challenge and requires understanding how bending magnets transform these states.