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 177
The Superconducting Talbot Effect in Phased-Array Josephson Junctions
We introduce the superconducting Talbot effect---a macroscopic quantum self-imaging phenomenon occurring when proximitized Cooper pairs propagate through a ballistic two-dimensional electron gas.Random-matrix and transport frequencies in eigenstate spectral functions
The fact that generic isolated many-body quantum systems thermalize is understood using the eigenstate thermalization hypothesis (ETH).An Exact Operator Formulation of Statistical Quasiparticle Theory for Nonlinear System-Bath Coupling
We develop an operator formulation of statistical quasiparticle theory for open quantum systems with nonlinear system-bath coupling, extending beyond the linear coupling setting of the standard…Benchmarking higher-ranking multipoles and polarizability tensors for small molecular systems
Molecular properties govern how molecules interact with one another or external fields.Explicit closed-form propagators for time-dependent gain-loss master equations
Time ordering is a central obstacle in driven open-system dynamics governed by master equations with time-dependent rates.Phase space anatomy of dynamical quantum phase transitions
Dynamical quantum phase transitions (DQPT) are commonly defined either by the behavior of a late-time order parameter or by nonanalyticities in a quantum state's return rate.Circuit Hypernetworks for Quantum-Augmented Diffusion Language Models
Language models can be adapted by changing the computations applied to individual tokens.Experimental evidence of generalization in quantum machine learning in small-data regime
Quantum machine learning is a promising paradigm for learning from limited data, a central bottleneck in domains such as medical imaging, clinical trials, and rare diseases.Wigner-positive quantum states can have lower entropy than the vacuum
The Wigner entropy conjecture posits that pure Gaussian states minimize the Shannon entropy of non-negative Wigner functions, known as the Wigner entropy.Unified spatiotemporal quantum states and spatiotemporal entanglement from Kirkwood-Dirac phase space
The notion of a spatiotemporal quantum state extends the conventional concept of a spatial quantum state to the spatiotemporal domain.Pendellösung length-scale neutron and X-ray interferometry
Neutron and X-ray perfect-crystal interferometers (PCIs) are powerful platforms for studies of fundamental physics and phase-contrast imaging.Superconducting qubit based on altermagnets
Altermagnets, characterized by vanishing net magnetization and momentum-dependent spin splitting, provide a promising platform for next-generation Josephson devices.Observable-targeted variational quantum simulation of Hamiltonian dynamics
Standard variational quantum simulation seeks to reproduce the evolution of the full quantum state, although many applications require only the expectation values of a few observables.Collective cavity quantum electrodynamics in solid-state optical clocks
Solid-state frequency standards are generally limited by strong decoherence, rendering conventional interrogation schemes inefficient.Stabilizing temporal quantum-enhanced sensitivity via sub-optimal measurements
In non-equilibrium probes, quantum-enhanced sensitivity is quantified through super-linear scaling of precision with respect to time, as a central metrology resource.Trade-offs and experimental feasibility of nonlocal polygamy with two-outcome Bell inequalities
Entanglement and Bell nonlocality have different sharing constraints across subsystems of a multipartite quantum system.Overcoming the Hong-Ou-Mandel interference limitation for the second photon from a two-photon cascade
Quantum emitters such as semiconductor quantum dots can provide entangled photon pairs emitting from a system of cascaded states.Measuring correlations using local and nonlocal quenches
We present a theoretical proposal for measuring correlation functions in a quantum field system based on the use of quantum quenches.Anomalously enhanced lifetimes of low angular momentum Rydberg states in singly charged alkaline-earth metal ions
Trapped ions excited to high-lying electronic states, so-called Rydberg states, open new opportunities for quantum simulation and quantum computing.Explanation of the Observed Energy Exchange through the vacuum in Optomechanics
In cavity optomechanics, the standard large-detuning regime is commonly described by retaining only the radiation-pressure interaction, while higher-order mirror--field interactions are assumed to…