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 44
Wave Is All You Need: A Quantum Language Model Based on Fully Connected Quantum Boltzmann Machine
This work proposes a self-attention mechanism based on the fully connected quantum Boltzmann machine (FC-QBM), and further constructs a fully connected quantum Boltzmann machine language model…Model-Uncertainty-Aware Digital Twins for Non-Markovian Quantum Repeater Memories
Quantum-repeater controllers need reliable estimates of stored entanglement as adjacent links are generated.Higher Order OTOCs in Chaotic Quantum Maps: Ruelle-Pollicott Resonances and Asymptotic Freeness
Out-of-time-ordered correlators (OTOCs) measure the scrambling of information and are a powerful diagnostic of chaos.Quantum Anomaly Detection in network traffic using Variational Quantum Classifiers
The increasingly complex cybersecurity landscape requires more advanced network anomaly detection systems.Semiclassical dynamics of higher-order squeezing: self-adjoint extensions and coherent returns
Higher-order squeezing Hamiltonians have several self-adjoint realizations, while their classical trajectories reach infinity in finite time.Decision-aware validation of zero-noise extrapolation in QAOA optimization landscapes
Zero-noise extrapolation (ZNE) is usually validated by the accuracy of mitigated observables, yet variational quantum optimization uses those observables to select parameters.Controlling transport with structured long-range hopping
The combined effects of disorder and long-range hopping play an important role in determining localization and transport in low-dimensional quantum systems.Dephasing-powered open quantum-dot battery
We propose a simple realization of an open quantum battery powered by local dephasing.Zeptojoule Microwave Calorimetry with Nanosecond Recovery in Graphene
Graphene calorimeters are predicted to combine extreme energy sensitivity with rapid thermal recovery, yet experiments remain far from ideal estimates.Exact operator bounds on Leggett-Garg violations
Leggett-Garg (LG) inequalities test whether correlations measured at different times admit a positive joint probability distribution over histories.Communication Complexity of Integer Matrix Singularity
Alice and Bob hold complementary halves of the columns of an $n\times n$ matrix of $k$-bit integers and decide whether it is singular over $\mathbb Q$.Designing Quantum Solutions to the Closest String Problem with the Non-Variational QWOA
Quantum computing offers promising approaches to combinatorial optimization problems whose search spaces grow exponentially with problem size.When is a bosonic operator a Hamiltonian?
Hermitian polynomials in the quadrature operators $x$ and $p$ are the basic ingredients of continuous-variable quantum information, and increasingly exotic ones are now routinely engineered in…Admissible Subspaces for the Collective Haar Twirl: Schur-Weyl Classification and Heredity under Tensor-Factor Reduction
Quantum private broadcasting (\textsf{QPB}) asks whether a quantum message can be encrypted once, broadcast to several recipients, and decrypted locally while the joint ciphertext reveals no…Competing Fault Histories in Lattice-Surgery Decoding
Different physical faults can produce the same detector record while carrying opposite logical labels.Krylov geometry and optimal recovery under uncertain coherent noise
Recovery from a coherent rotation with an unobserved angle depends on both the encoding and what calibration reveals about the noise.The Coherent State Projection Eigenvalue Theorem
Recent papers have developed a cyclic symmetry projected extension for coherent state representations of bosonic Hilbert space.Path-Distinguishability Gaps at Fixed Visibility in Noisy Qubit Interferometers
The wave--particle duality relation bounds visibility and path distinguishability but does not determine their attainable values in a fixed noisy interferometer.Deep-Microscopic Photonic Bandstructure of a Two-Dimensional Honeycomb Lattice
Conventional descriptions of light in materials rely on macroscopic models that average the optical response over the microscopic lattice structures.Task-Directed Spectral Design for Local Quantum Tomography
Many tomography tasks require only a low-dimensional function of the state.