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 172
Photon-Statistics Control of Strong-Field Rydberg-State Excitation
Photon statistics provides a new control dimension for strong-field bound-state formation.An asymmetric atom-photon architecture for device-independent quantum key distribution over 25 km
Device-independent quantum key distribution (DIQKD) can guarantee security without trusting the internal workings of the measurement devices, but extending it to fiber networks demands high-quality…Exponential Quantum Advantage in Testing Fourier Dimensionality
A boolean function $f$ has Fourier dimension $k$ if its nonzero Fourier coefficients span a subspace of dimension $k$.On the Construction of Trapdoor Claw-Free Functions with Certifiable Key
Trapdoor claw-free functions (TCFs) underpin much of classical-quantum cryptographic interaction, yet every TCF-based protocol states its guarantees relative to an honestly generated key.Nullspace-guided Adaptive Bootstrap of Quantum Many-body Systems
We introduce a nullspace-guided adaptive (NGA) bootstrap method that improves the energy lower bounds of quantum many-body ground states by refining the bootstrap basis in a dynamic and incremental…Quantum survival in hybrid pursuit dynamics - a lion chasing a lamb problem
Measurement and classical randomness usually degrade coherence; controlling where and when a subsystem is monitored can instead make them a tunable resource.Universal Fidelity Law for Linear-Optical Entangling Gates
Imperfect photon sources degrade the performance of interference-based linear-optical entangling gates.Modulating Retroreflector-Aided UAV-Based FSO/QKD Systems
Unmanned aerial vehicles (UAVs)-based free-space optics (FSO)/quantum key distribution (QKD) systems require high-precision pointing mechanisms.On the Computational Complexity of Guided Berry Phase Estimation
We prove that deciding the Berry phase for parameterised 2-local qubit Hamiltonians is BQP-complete when presented with a classical description of a guiding state, promised to overlap with the…Spin-Orbit-Mediated Magnetization Transfer in the Fermi-Hubbard Model
We demonstrate spin--orbit-coupling (SOC) catalysis of magnetization-sector transfer in the half-filled Fermi--Hubbard model.Bridge of $Ψ$'s: Quantum Circuit Optimization with Schrödinger Bridges
Quantum circuit optimization replaces a circuit with an equivalent one of fewer gates and lower depth, reducing execution cost and error rate.Dynamical, thermal, and ground-state multiparameter quantum metrology: Fundamental limits and their attainability in magnetometry
We consider the simultaneous estimation of multiple parameters in Hamiltonians of the form $H_{\vecθ}= H_{\vecθ}^P + H^C$, where $H_{\vecθ}^P$ encodes the unknown parameters and $H^C$ is a control…Maximum-Likelihood Amplitude Estimation for Quantum Monte Carlo Integration on Trapped-Ion Hardware: Convergence, Noise-Floor Saturation, Depth-Dependent Bias
Quantum Amplitude Estimation promises to accelerate Monte Carlo integration by replacing the classical $\varepsilon \propto N^{-1/2}$ sampling law with the Heisenberg-limited $\varepsilon \propto…Hyperbolic Restricted Boltzmann Machine Neural Quantum State
We construct the first type of non-Euclidean non-autoregressive neural quantum state (NQS) in the form of the hyperbolic Restricted Boltzmann Machine (HRBM), which is studied in the variational…Effective-Hamiltonian Quantum Solvers for Differential Equations: Alternative Constructions and Function Encodings
Differential equations can be encoded as ground-state problems by constructing a positive-semidefinite effective Hamiltonian whose minimum-energy state represents the solution.Non-Markovian Charging of a Micromaser Quantum Battery
We theoretically investigate the role played by non-Markovianity in the charging of a quantum battery.Entanglement Embezzlement from Diffusive Hydrodynamics
Entanglement embezzlement asks how much entanglement can be borrowed from a many-body state by local operations and classical communication while returning that state with a small error.An Operator-Theoretic Model of Entanglement Percolation in Series-Parallel Quantum Networks
The realization of entanglement distribution (ED) in large-scale quantum networks (QNs), as a fundamental theoretical framework of quantum communication, faces significant challenges.Lattice Lindbladian simulation by patching and merging
Simulating the dynamics of dissipative quantum many-body systems governed by local Lindbladians is a fundamental task in quantum computation.Photonic CZ gates based on few-photon scattering from emitter-cavity systems
In this paper we analyze the performance of photonic CZ gates based on N waveguide-coupled cavities containing two-level emitters.