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 93
Experimental Measurement-Device-Independent Quantum Key distribution with Flawed State-Preparation over 300 km
Quantum key distribution (QKD) promises theoretically secure communication.Robust quantum key distribution with imperfections in state preparation and characterization
Quantum key distribution (QKD) offers an approach for secure communication over quantum channels, based on the principles of quantum mechanics.Deterministic generation of large-scale photonic GHZ states utilizing spin echo in a solid-state quantum light source
Quantum technologies witness rapid contemporary developments transitioning from abstract scientific ideas and fundamental demonstrations, into systems of sufficient quality and scale, enabling real…An iterative Bayesian variational quantum eigensolver with the von Mises-Fisher distribution
We develop an iterative Bayesian variational quantum eigensolver in which the unknown ground state, parametrised as a real unit vector, is inferred through a von Mises--Fisher distribution…Quantitative Rules for Parallel Calibration and Drift-Resilient Maintenance of Large-Scale Superconducting Quantum Processors
As superconducting quantum processors scale toward hundreds of qubits, manual calibration becomes increasingly costly and difficult to sustain.Topological Superradiant Universality Classes in Cavity-Mediated Spin Chains
Superradiant phase transitions are fundamental phenomena in light-matter coupled systems.Certifying Hidden Paths: Scalable Topology Assurance for QKD Networks
Large-scale Quantum Key Distribution (QKD) networks rely on trusted repeaters, making the security properties of the selected communication path an essential part of end-to-end assurance.A Power-Liouville Hermite Orbit: Common Spectral Quantization of the Singular Sextic Oscillator and Fractional-Power Potentials
A singular sextic oscillator in the finite-Hermite biconfluent-Heun hierarchy generates an exact four-member power-Liouville Hermite orbit.An Efficient Quantum Circuit for Flow Model Execution Using Quantum Neural Networks
Flow models generate trajectories from an initial distribution to a target distribution by solving an ordinary differential equation defined by a velocity field.Quickly extracting fidelity decay rates in random circuit benchmarking experiments
Randomized benchmarking (RB) with structured circuits is experimentally scalable, but gives biased short-depth fidelity estimates because incomplete ensemble mixing introduces transient modes.Remote nonreciprocal magnon magnon entanglement via the Barnett effect with coherent feedback
We propose a scheme for generating and controlling remote nonreciprocal magnon--magnon entanglement in a cavity magnonic system with coherent feedback.The two microwave cavities are driven by…Spin-outcome correlations and memory-assisted entropic uncertainty in Bhabha scattering with an entangled spectator
We investigate spin-outcome correlations and memory-assisted entropic uncertainty in tree-level Bhabha scattering, where an incident electron $A$ scatters with a positron $B$ initially entangled…Dielectric constant of holographic insulator from quantum geometry
We study dielectric properties of holographic insulators from the quantum geometry of the ground state.From Solid-State Spin Defects to Fluorescent Proteins: A Perspective on Quantum Optical Sensing Platforms for Biomedical Applications
Quantum optical sensing has evolved from isolated solid state spin defect platforms to increasingly bio-integrated systems designed for biomedical applications.Error-Corrected Memory and Logic on a Heavy-Hex Superconducting-Qubit Processor
Large quantum computations require high-fidelity error-corrected memory and fault-tolerant logical operations.Non-Perturbative Vibrational Excitation by Arbitrary Electric Fields from Classical Phase-Space Dynamics
We present a non-perturbative framework for the quantum treatment of vibrational excitation in molecular systems driven by electric fields with arbitrary time dependence.Parameter-Dependent Noise Resilience in the Quantum Approximate Optimization Algorithm
The Quantum Approximate Optimization Algorithm (QAOA) is a variational quantum algorithm used for solving combinatorial optimization problems, which is thought to be a promising application of…Beyond QAOA: A Review of AI and Quantum Computing for Adaptive Combinatorial Optimization
Near-term quantum approaches to combinatorial optimization are limited by qubit counts, circuit fidelity, sampling cost, and the difficulty of encoding constraints, while machine learning is…Tunable Ultrastrong Magnon-Magnon Coupling and Squeezed States in a Triaxial Van der Waals Antiferromagnet
Achieving and quantifying ultrastrong magnon-magnon coupling (USC) remains a key challenge for quantum magnonics.Extended Results on Absorbing Boundary Conditions as Limits of Complex Potentials
In quantum mechanics, among the proposals for how to compute the probability distribution of detection time and place along a given spatial surface or in a given volume, two leading candidates…