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 73
A thermally and perturbatively stable classical spin model in two dimensions
We show that the 2D classical spin model constructed in arXiv:2605.10943 hosts many metastable states at non-zero temperature which are stable to arbitrary Hamiltonian perturbations, providing the…Trapping of nanofabricated SiO$_2$ high-aspect-ratio discs in an optical lattice
We describe the nanofabrication and loading of lithographically patterned, high aspect ratio $10$ $μ$m diameter silicon dioxide discs with thickness of $400$ nm into an optical standing wave trap in…Universal Threshold Laws for Dipolar Evaporation of Molecular Fermi Gases
Fermi statistics suppress the elastic collisions that rethermalize a Fermi gas during evaporative cooling, creating a fundamental low-temperature bottleneck for producing quantum degenerate gases.Circuit Synthesis for Variational Quantum Algorithms: The Depth of Algebra and Geometry
The analysis of Hamiltonian Variational Ansätze centers on three fundamental questions: which states are exactly reachable from a given initial state, what native control depth suffices for local…Quantum-Classical Neural Networks for Solving Lindblad Master Equations
Variational quantum algorithms have emerged as a promising approach for simulating open quantum systems, yet their expressive power and trainability remain poorly understood.Area Theorems for Quantum Error Correction
The extrinsic information transfer (EXIT) and generalized EXIT (GEXIT) area theorems provide fundamental conservation laws that connect the rate of classical codes to the performance of…Metric and Dispersive Dynamics of Phase Perturbations in Bohmian Quantum Mechanics
By linearizing the hydrodynamic equations associated with the Madelung transformation in the context of Bohmian dynamics, we derive an effective metric for the phase perturbation around a background…Programmable Preparation of Topological Entangled States
Programmable preparation of entangled quantum states is a central requirement for scalable quantum information processing, quantum networking and photonic quantum computing.The Classical Boundary of Quantum Computation: History-Resolved Causal Stochastic Machines and the Cost of Classicalization
What separates quantum computation from classical computation when a classical model may retain every branch history and arbitrary causal memory?How do late-time photons "record" primordial curvature perturbations?
Inflationary cosmology faces a fundamental gap between primordial quantum fluctuations and the classical cosmic history inferred from observations.Transient Heat Conduction on Quantum Hardware: Replicated Temperature-Field Reconstruction and Shot-Count Sensitivity with a Variational Quantum Linear Solver
Implicit discretizations of transient heat conduction repeatedly generate sparse linear systems, making diffusion problems a natural test bed for quantum linear solvers.Minimal-length kinematics of coherent light and a proposed two-color vacuum chronoscopy
The unification of quantum theory and general relativity suggests the existence of a minimal measurable length, leading to a generalized uncertainty principle (GUP) and an energy-dependent vacuum…A note on the A.C. spectrum of limit-periodic Jacobi matrices
We show that limit-periodic Jacobi matrices in the weak exponential class $EC(η)$ have purely absolutely continuous spectral type when $η$ is sufficiently large, depending only on the…Quantum LDPC Codes from Polynomial Minors
We construct quantum codes from codewords of a cyclic code and the minors of a polynomial matrix.Retrieving Metrological Information from Noisy Squeezed Spin States via Bayesian Optimization
Frequency inhomogeneity can obscure the metrological advantage of squeezed spin states, making the choice of readout crucial.A compact six-beam 3D magneto-optical trap based on multifunctional metasurface chips
Magneto-optical traps (MOTs), indispensable to cold-atom-based quantum computing and quantum precision measurement, are increasingly desired in compact and stable form.Shot- and Noise-Aware Pauli Correlation Encoding for Max-Cut Experiments on IBM Heron Quantum Processor
Pauli correlation encoding (PCE) encodes $m$ binary variables in the signs of $k$-body Pauli correlators of $n=O(m^{1/k})$ qubits, and trains a parameterized circuit on a relaxed loss of sharpness…A Reconstruction of Michelson Interference from On--Off Detection Statistics
This paper reconstructs the Michelson interference phenomenon based solely on the binary (on-off) statistics of a single-photon counter and macroscopic path-difference data, without the a priori…Cryogenic Multiplexing Control Chip for Superconducting Quantum Processor
This paper proposes a scheme and design of cryogenic multiplexing control chip (MCC) which enables one microwave cable to control many superconducting qubits.Transport Information Beyond Strong Eigenstate Thermalization
Strong eigenstate thermalization (ETH) in operationally mean-ergodic, non-chaotic systems provides an opportunity to investigate whether Floquet eigenstates retain information about classical…