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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Quantum non-Markovian response spectra
Quantum systems are rarely isolated from their surroundings.On linearity or non-linearity in machine learning for quantum chaotic dynamics
Accurately simulating chaotic quantum many-body dynamics remains a major computational challenge for classical methods, due to the rapid buildup and spatial spreading of entanglement during the…Millisecond phonon lifetimes in piezoelectric nanomechanical resonators
Piezoelectric nanomechanical resonators operating at gigahertz frequencies are a promising platform for quantum information processing and precision sensing, but phonon lifetimes have been limited…Combining Error Verification and Privacy Amplification in Quantum Key Distribution
Quantum Key Distribution (QKD) protocols typically involve two separate steps of error-verification and privacy amplification.Scattering entanglement entropy between one particle species and the others
We construct the entanglement entropy of a general scattering process between one particle species (denoted as $A$) and the rest of the final state.Quantum Networking at the Speed of Quantum Computation: Kilohertz Entanglement in a Heterogeneous Quantum System
Distributed quantum computing requires rapid, high-fidelity entanglement between qubits in separate processor modules.Quantum simulation of material-specific Hubbard models with alkaline-earth atoms
A long-term goal of quantum simulation is to faithfully reproduce the low-energy Hamiltonians of correlated quantum materials, establishing a direct connection between solid-state experiment…Quantum jumps of sound
Quantum mechanics predicts that a vibrating object's energy comes in discrete packets, yet no measurement of its position reveals this discreteness.Nonlinear Feedback in Josephson Circuit Optimization: Application to a Kerr-Reversal JTWPA
Optimizing Josephson-based nonlinear microwave devices is computationally demanding because the straightforward approach requires exploring broad circuit parameter spaces through expensive nonlinear…Single-shot magic state factories for quantum LDPC codes
Quantum low-density parity-check (qLDPC) codes can substantially reduce the qubit overhead of fault-tolerant quantum computation, but any useful architecture based on such codes also requires an…Quantum-Enhanced Inference of Conditional Future Probabilities with Reduced Memory Cost
Many potential future events have devastating consequences, from the onset of earthquakes to financial black swan events.Engineering Quantum Interactions: From Effective Models to Validated Physical Predictions
Effective models make complex quantum dynamics tractable by retaining only the states, processes, and timescales relevant to a given physical question.Reconstruction of Black Hole Islands from Hawking Radiation via the Algebraic Petz Map
The island proposal guarantees a unitary Page curve for evaporating black holes, implying that operators deep behind the horizon must be fully reconstructable from asymptotic Hawking radiation.Scaling Quantum Optimization to the Thousand-Qubit Scale with Distributed Quantum Sampling
The Minimum Birkhoff Decomposition (MBD) seeks a sparse weighted sum of matchings and is a challenging optimization problem with applications in network scheduling and energy trading.Coherence-assisted quantum state preparation and thermal control through repeated interactions
We investigate the relaxation dynamics and steady state of a qubit interacting with a coherent environment through an energy-conserving flip-flop interaction within the Markovian…Susceptibility of qudit-qudit entanglement to quantum noise: insights from the negativity rank
One aspect of complexity for quantum many-body systems resides in their ability to exhibit entanglement, uniquely quantum correlations central to quantum computation.Optimal Diffractive Focusing of Vortex Beams
We formulate diffractive ring focusing of paraxial beams carrying orbital angular momentum (OAM) through a finite circular aperture as a variational optimization problem.Uncertainty Quantification for Quantum Fidelity Estimation
Quantum fidelity estimation is a fundamental task in quantum information and computing to benchmark the quality of quantum states, and hence of quantum processes, on noisy quantum hardware.Quantum geometry at arbitrary genus - I: Anharmonic potentials
In quantum mechanics of genus-1 potentials, perturbation theory around the topologically trivial saddle and non-perturbative instanton saddle are constructively related via the P/NP relation.Helicity decoupling ultrastrong Rabi splitting from quantum vacuum dressing
Polaritons and quantum vacuum dressing are usually regarded as intertwined consequences of ultrastrong light-matter coupling.