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 25
Benchmarking Single-Photon Sources for Measurement-Device-Independent Quantum Key Distribution
Measurement-Device-Independent Quantum Key Distribution (MDI-QKD) enables secure communication without trusting the measurement devices, but its performance critically depends on the quality of the…The Quartic Gap Between Quantum and Dequantized Algorithms for Linear Algebra Is Tight
Quantum algorithms for linear algebra that access a matrix $A$ through quantum random access memory (QRAM) prepare quantum states proportional to the solutions of linear systems and related problems.Charge Pumping Leptogenesis from the Symmetric Mass Generation Phase on a Four-Leg Ladder Lattice
Quantized charge pumping in quantum Hall systems is a bulk topological property, typically manifesting on gapless boundaries as spectral flow through chiral edge modes upon flux insertion.Topologically Protected Edge States in a Single Flux Qubit
We show that topological edge states can be realized in a simple superconducting circuit composed of an inductively shunted flux qubit.Functional Tensor Trains for High-Order Greeks and Exposure Tails of Multi-Asset Structured Products
Risk management of worst-of autocallables needs price sensitivities (Greeks) up to third order and the potential future exposure, a tail quantile of the note's future value.Persistence of Unitary Almost Mathieu Operator Gaps Ten Dry Martinis, Five on the Rim
We determine exactly which gap labels are realized by open spectral gaps for the unitary almost Mathieu operator at every irrational frequency and all coupling constants ($0<λ_1,λ_2\leq1$).Weighted hypergraph states as a resource for quantum metrology
Quantum correlations can be used to improve sensing precision beyond classical limits, yet the correlated resource states needed can be challenging to prepare and preserve.Time-optimal quantum dynamics under fixed-norm generators
We investigate the dynamics of quantum systems whose evolution is governed by linear generators of fixed unitarily invariant norm.Secret-shared teleportation of a two-qudit gate with a deferred recipient
An unknown quantum operation, like an unknown quantum state, cannot be perfectly copied or stored for later use.Heavy quarkonium dynamics beyond the binding energy over temperature expansion
We revisit the pNRQCD open-quantum-system description of bottomonium in a quark-gluon plasma, writing the full master equation in a spherical basis and establishing a framework for its numerical…Quantum simulation of real-time Yukawa dynamics with qubits and qumodes
Real-time quantum simulation of field theories offers access to scattering and decay dynamics, circumventing the limitations of Euclidean lattice methods.Exhaustive Construction of Generalized Parent Hamiltonians for Matrix Product States
Characterizing local Hamiltonians that host interesting many-body states as eigenstates has been an important problem in quantum many-body physics.Quantum Simulation of Hadronization: From String Breaking to Event Generation
High-energy collisions produce large numbers of quarks and gluons that are bound into hadrons by the confining interactions of quantum chromodynamics (QCD).Distance to integrability and complexity
We consider nearest-neighbour interactions on spin-1/2 chains.Benchmarking Quantum Convolutional Neural Networks and their classical surrogates on long-range strongly correlated models
We benchmark quantum convolutional neural networks (QCNNs) and their classical surrogates for phase differentiation in one-dimensional strongly correlated systems with beyond-nearest-neighbour terms.Triple descent in quantum linear regression
Quantum linear regression models, such as quantum extreme learning machines and quantum fidelity kernels, are trained on features that can only be estimated from finitely many measurement shots.Finesse evolution in a bichromatic cavity under blue and red resonant illumination in vacuum
The long-term performance of high-finesse optical cavities depends on the stability of their mirror coatings under vacuum and under continuous exposure to high circulating power.Phase-space dynamics and multicomponent wave-packet structures in the Dunkl anharmonic oscillator
We study the phase-space dynamics and multicomponent wave-packet structures of the Dunkl anharmonic oscillator (Kerr medium).Application a quantum machine learning algorithm to the applied problem of modeling the thermal regime of a servers
Quantum computing is a rapidly developed field of science.Zero mode, Zero influence: Spatial-derivative coupling in particle detectors
It is common in particle detector models in cavity QED to often omit zero modes or assume their state, compromising causality or introducing ambiguity in their predictions.