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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From maximum work to maximum power in an optimally controlled quantum Ising Otto engine
In finite-time quantum Otto engines, maximizing power requires balancing the duration of the unitary strokes against the losses from nonadiabatic excitations.Approaching quantum limits in sub-Rayleigh resolution using phase modulation optimization
Spatial-mode demultiplexing (SPADE) has made significant progress in incoherent optical imaging and has been implemented through various experimental approaches.Effective Thermodynamics of a Volume-Dependent Qubit
We develop an effective thermodynamics for a qubit whose energy gap depends inversely on a volume-like control parameter, $Δ(V)=Δ_0/V$, where $V$ is a spectral-control coordinate rather than a…Exponential mixing time for the Davies dynamics of the quantum random energy model
We prove exponentially slow thermalization for the quantum random energy model (QREM) under Davies dynamics.Nonuniform Time-bins for Making Raw QRNG Outputs Uniform
Random numbers play a vital role in scientific simulations and cryptography.Quantum trajectory of a spin oscillator, continuous retrodiction beyond the Heisenberg uncertainty relation
The Heisenberg uncertainty relation in quantum mechanics limits the precision of predicting the outcome of measurements of any non-commuting observables.Semi-Analytical Geometric Synthesis of Robust Quantum Controls
High-fidelity quantum gates are a central requirement for fault-tolerant quantum computation, yet their implementation is limited by the sensitivity of qubits to environmental noise and by control…Accelerating Quantum-Classical Auxiliary-Field Quantum Monte Carlo with Shadow-Trained Neural Quantum States
Quantum-classical auxiliary-field quantum Monte Carlo (QC-AFQMC) uses a trial state prepared on a quantum computer to improve the accuracy of the classical AFQMC algorithm.Machine learning quantum data to accelerate quantum Monte Carlo
Simulating strongly correlated electrons in molecules and materials remains a central goal for quantum computing.Non-Unitary Quantum Butterfly Effect: Theory and Experiment
We present a generalization of the out of time order correlator (OTOC) for non-unitary systems.Primitive Quantum Gates for an $SU(3)$ Discrete Subgroup: $Σ(216\times3)$
We construct a primitive gate set for the digital quantum simulation of the $648$-element discrete subgroup of $SU(3)$, $\dsb$.Coherent phase slips in coupled rings: from weak to strong interactions
We study the coherent transfer of circulation between two weakly coupled lattice rings of ultracold bosons, in which a persistent current initially prepared in one ring oscillates back and forth…Quantum Advantage with Sign-Free Proofs: An Oracle Separation between $\mathsf{StoqMA}$ and $\mathsf{MA}$
Several landmark oracle results (FOCS 2000, FOCS 2025, STOC 2026) establish strict separations along the chain $\mathsf{MA} \subseteq \mathsf{QCMA} \subseteq \mathsf{QMA}$, showing that quantum…Quantum Fourier integration of decay rates at next-to-leading order
We discuss the use of quantum neural networks (QNNs) as a tool for integrating decay rates at next-to-leading order (NLO) in perturbation theory.QDiff: Differential Testing of Quantum Software Stacks
Over the past few years, several quantum software stacks (QSS) have been developed in response to rapid hardware advances in quantum computing.Optimal finite-copy readout of three-qubit entanglement with state retention
For unknown three-qubit pure states, we characterize the optimal trade-off among GHZ-class certification, binary probability readout of the three-tangle, and conditional state retention.Persistent level-resolved transmon population after dispersive readout, and the limits of its open-system description
We calculate the level-resolved transmon population remaining after dispersive readout with a converged open-system model.Finite-Time Thermodynamic Routing in an Anharmonic Collective Quantum Otto Engine
The Gibbs state determined by a thermal reservoir does not determine how a working medium approaches it or how fluctuations accumulate over repeated cycles.Certifying quantum code and circuit distances at scale
Code and circuit distances characterize how strongly quantum error correction suppresses logical errors and guide code comparisons, schedule choices and resource estimates.Entropic measures of quantum information
Entropy has played a pivotal role in physics ever since its inception by Clausius in the early industrial age.