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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Evolution and breakdown of chiral anomaly in Weyl semiconductor tellurium
Chiral anomaly in topological materials manifests as negative longitudinal magnetoresistance, yet the tunability and evolution of this effect remain elusive.A robust digital receiver architecture for continuous-variable quantum key distribution
Continuous-variable quantum key distribution utilizes advanced digital signal processing techniques to mitigate channel impairments, driving the progress of high-performance quantum secure…Temporal-Access Resource Theory for Continuous Process Tensors
The uncontrolled endpoint channel can conceal how well a quantum process can protect a logical task under time-resolved control.Pulsed control of an entanglement-breaking index: thermal valleys, a certified valve, and its open-close asymmetry
The entanglement-breaking index of a channel is the number of self-compositions after which all entanglement with a reference system is destroyed.Continuous-wave AC magnetometry up to hundreds of megahertz using nitrogen-vacancy centers under a strong transverse magnetic field
Nitrogen-vacancy (NV) centers in diamond are promising quantum sensors for AC magnetic fields.Real Fiducial Vectors Only Exist in Dimensions $d\equiv 3 \pmod{4}$
We investigate restrictions on the dimensions and coordinate fields of real Weyl-Heisenberg fiducial vectors.Graphene double quantum dot as a solid-state two-level system in the THz range
Matter-based two-level quantum systems are fundamental building blocks of quantum technologies, underpinning applications in quantum computing, simulation, communication, and sensing.Verifiable Sampling for Delegated Generative Quantum Machine Learning
Generative machine learning has shown remarkable results across a wide range of interdisciplinary tasks, motivating significant efforts toward Quantum Generative Models as a path to beyond-classical…Block encoding of semiseparable matrices via their generators
We present an explicit quantum circuit that constructs a block encoding of a generator-representable semiseparable (one-pair) matrix directly from its two generators.Percolation of Data Constraints and Reorganization of Boolean Function States in Parity Learning
We study how a neural network reorganizes its learned function as training proceeds and as previously unseen parity data accumulate.Theory of exciton-exciton interactions in crystalline systems
Excitons are bound electron-hole pairs in semiconductors whose interactions influence optical properties and determine their collective behavior and emergent correlated phases.Zak Phase Quantization without Global Symmetry through Destructive Interference
The Zak phase provides a fundamental geometric characterization of one-dimensional band structures and, when quantized by symmetry, serves as a bulk indicator of polarization and boundary phenomena.Circuit Design Problems in Binary Polynomial Quantum Optimization
Solving combinatorial optimization problems on near-term quantum computers mainly relies on their quadratic unconstrained binary formulation.A General Method for Extending Isoscattering Non-Isospectral Quantum Graphs
The present paper sets out a general method for extending the isoscattering, non-isospectral quantum graphs.Second quantization and compactness of induced Gaussian quantum Markov semigroups
We characterize compactness of the Hilbert-Schmidt semigroups induced by finite-mode Gaussian quantum Markov semigroups with a faithful normal invariant state.System-Design Optimization of a Single-Transmitter, Single-Fiber QKD-based ITS Communication Link
Deploying QKD-based secure communication at scale requires reducing duplicated optical hardware while preserving the rate of protected user data.Wideband microwave resonator for NV center vector magnetometry
The nitrogen-vacancy (NV) color center in diamond has found applications in magnetometry across various geometrical scales.Quantum extreme learning for forecasting experimental chaotic electronic circuits
Quantum reservoir computing and its special case, quantum extreme learning, are powerful tools for predicting classical discrete time-series with quantum devices.Modelling Josephson Junctions with Boundary Conditions: Towards High-Fidelity Models for Superconducting Qubits
Josephson junctions are the central nonlinear element of superconducting qubits, yet their standard description is reached through a chain of approximations.Harmonic analysis and circuit approximation of Sobolev functions on quantum input spaces
We derive approximation rates for Sobolev functions defined on the complex unit sphere and complex projective space, representing quantum states, and on the special and projective unitary groups…