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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Viscous hydrodynamics from correlated losses
Interactions turn a gas into a fluid.Gravity from generalized entropy
Gravity from entropy (GfE) identifies its Lagrangian with the geometric quantum relative entropy (GQRE) between the spacetime metric and a metric induced by matter and curvature, treating the metric…Post-Optimization Subspace Corrections to Quantum Ansätze
Circuit depth and measurement count are the main limitations for chemical applications of the leading variational quantum algorithms on quantum computers.Cavity-assisted dynamic nuclear polarisation
Dynamic nuclear polarisation transfers polarisation from electron to nuclear spins by relying on a dissipative channel.Selective Control and Imaging of Higgs and Goldstone Modes with a Quantum Simulator
We realize the mesoscopic Bose-Hubbard model at unit-filling on a two-dimensional array of transmon qubits and selectively excite collective modes associated with amplitude or phase fluctuations of…Quantum-classical algorithm interpolation for spatial search
Quantum-walk algorithms can quadratically reduce the dependence of spatial search on the classical hitting time $\mathrm{HT}$.Beyond the lemon: Spectra of random Lindblad operators with a Hamiltonian component
Generators of continuous-time quantum Markovian evolution, known as Lindblad operators, play a key role in the theory of open quantum systems.Quantum Reservoir Computing for Attention-like Selective Reproduction
Choosing which information to use as the context changes is a basic cognitive operation.Mutual Information of Measurement in Conformal Field Theories
The mutual information of measurement of a local operator between two spatial regions characterizes the reduction in the uncertainty of measurement outcomes in one region given the outcome in the…Gap-Priced $|T\rangle$-States: Dynamic $|T\rangle$ Post-Selection and Budget-Aware Factory Provisioning
Magic $|T\rangle$-state preparation dominates the cost of fault-tolerant quantum computation on surface codes, yet cultivation and distillation are typically provisioned statically, leaving much of…Leakage benchmarking with decohering subgroups in the presence of preparation and measurement errors
A common problem with physical qubits is that the state can leak outside the computational subspace.The noise cost of reservoir locality in broadband quantum amplifier chains
Directional quantum amplifiers enable weak-signal readout while protecting the source, but reservoir noise limits sensitivity.Adaptive Entanglement Witnessing for Two-Qubit Systems
Entanglement witnesses are a key instrument in determining the entanglement of unknown bipartite qubit systems without requiring a full tomography.Sequential optimization for orbital-optimized variational quantum eigensolvers
Orbital optimization within the variational quantum eigensolver (VQE) framework is useful for improving active-space quality and accurately capturing electron correlation with shallow quantum…Measuring higher-order bulk topology in a programmable quantum simulator
Topological insulators lie outside the standard Landau paradigm: Instead of being characterized by local order parameters and spontaneous symmetry breaking, their defining properties are encoded in…Multipolar Nanophotonics with Quantum Computers
Small particles respond to light through electric and magnetic patterns called multipoles.Permanent Thermodynamic Mpemba Inversion from Quantum-Jump Feedback
We show that a common quantum-jump feedback protocol can permanently reverse the nonequilibrium free-energy ordering of two prescribed initial states while preserving their Gibbs equilibrium.From isolated singular wells to exact Bloch bands: the trigonometric Pöschl-Teller lattice
An exactly solvable lattice with periodic inverse-square singularities exhibits two physically distinct mechanisms of spectral-gap closure.Noise-resistant off-resonance π-rotation realized in an NMR system
Precise manipulation of qubits (spins) requires strong suppression of noise arising from couplings between qubits and their environment, as well as from driving field fluctuations.QIAP: A Quantum-Inspired Authentication Protocol with BB84-Based Channel Monitoring
Authentication in quantum-aware communication settings requires mechanisms that verify user legitimacy while also assessing whether the communication channel exhibits excessive disturbance.