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 163
Indefinite causal order with output-signalling instruments
Quantum processes can exhibit indefinite causal order, allowing coherent superpositions of distinct orderings of events.Systematic errors from scalar slowing-down models in transient SERF magnetometry
Reduced Bloch models of spin-exchange-relaxation-free (SERF) magnetometers commonly describe the coupled electron--nuclear spin dynamics using a single nuclear slowing-down factor.Spread Complexity for Local Operator Quenches with Conserved Momentum
We study a family of locally excited states in two-dimensional conformal field theories in different setups, defined on the plane, on the cylinder, or at finite temperature.Connecting finite-size scaling and renormalization-group flows in Anderson localization on random graphs
We investigate the relation between two complementary descriptions of the Anderson transition on small-world random graphs: finite-size scaling of eigenfunction moments and renormalization-group…Scattering amplitudes from quantum hardware a la RESOs
We report the first quantum-hardware implementation of Real-time Estimators for Scattering Observables (RESOs).Quantum Encoding Agents: A Natural Language Interface for Data Embedding Strategy Selection in Quantum Machine Learning
Selecting a data encoding is a central and poorly tooled decision in quantum machine learning.Gate Synthesis in Dephasing-Limited Nitrogen-Vacancy Ensembles
Ensemble nitrogen-vacancy (NV) centers are widely used for quantum sensing and magnetometry, where performance depends on the accurate implementation of microwave pulse sequences.Facial classification Using Hybrid Quantum Machine Learning
Hybrid quantum methods have received limited study for resource-constrained facial biometrics.Quantum error mitigation from information dynamics
Overcoming experimental errors is a central challenge in quantum science.Learning Trotter Orderings for Heisenberg Hamiltonians with a Ranking Transformer
Trotterization approximates quantum time evolution by sequentially applying Hamiltonian terms.Robust Entanglement Witnessing via Dense Network Coding with Graph States
Practical tests for witnessing entanglement in the presence of noise are needed to verify and apply entanglement-based applications in real-world communication networks.Nonstabilizerness of the entangling layer in quantum circuit Born machines
The entangling layer of a quantum circuit Born machine can supply both entanglement and nonstabilizerness.Nonlinear collective-spin dynamics for quantum-enhanced sensing in solid-state platforms
Collective spin systems in solid-state materials are promising platforms for quantum-enhanced sensing.Quantum gates from the middle convolution of twisted Burau representations
We study braid representations obtained from character-twisted Burau inputs by the Katz-Long-Moody (KLM) construction, which corresponds to multiplicative middle convolution for KZ-type equations.Reconfigurable Bus-based Quantum Router for Modular Superconducting Processors
Scaling superconducting quantum processors requires interconnects that provide both non-local connectivity and parallel entangling operations.Efficient Record-and-Replay Arithmetic for Quantum Elliptic-Curve Point Addition
We study reversible secp256k1 point-addition circuits developed through ECDSA.Fail for Shor's elliptic-curve discrete-logarithm algorithm.Learned-projector QAOA for hierarchical optimization
Many optimization problems reveal inexpensive structural information before requiring costly final evaluation, whereas the conventional quantum approximate optimization algorithm (QAOA) applies a…Characterization and Active Control of Position-Dependent Timing Dynamics in Superconducting Strip Detectors
Superconducting strip single-photon detectors (SSPDs) have emerged as scalable, wide-strip variants of traditional nanowire counterparts.A Quantum Circuit for Gaussian Elimination
A quantum circuit for Gaussian elimination is developed in this work.Dense pentacene cocrystal demonstrates room-temperature coherent control
Maximizing the number of addressable spins within a fixed volume can improve ensemble quantum sensor sensitivity, but dense packing usually increases dipolar interactions and excited-state…