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 16
Correlated Catalysis Removes the Strong Converse for Entanglement Distillation
Entanglement distillation converts noisy shared quantum states into maximally entangled pairs using local operations and classical communication.Taming a macroscopic free mass through continuous quantum measurement
The free particle is the most elementary dynamical system in quantum mechanics.Universality and Emergent Classicality in Krylov Space
Krylov complexity grows linearly at late times for many systems.Spin SYK-dot chains: entanglement bound and resource estimates towards a quantum advantage
Ground states of Sachdev-Ye-Kitaev (SYK)-type models are volume-law entangled, which makes them costly both for tensor networks and for quantum hardware simulations.Dynamics of Fock states in traveling pulses
The quantum state of a traveling light pulse can qualitatively change the excitation dynamics of a two-level atom.Qyantram: A Transparent and Verifiable Quantum Computing Platform
Most quantum circuit platforms focus on idealized circuit assembly and simulation, hiding hardware compilation, error identification, and variational model training behind black-box operations.Inline inter-core phase control in multi-core fiber with a commercial polarization controller
Inter-core phase control is a prerequisite for interferometry in multi-core fiber (MCF), but no compact inline element for this purpose is presently available, and existing approaches require fanout…Stabilizer Learning under Global Depolarizing Noise with Polynomial Copies and $2^t$ Time
We study learning the stabilizer structure of an unknown pure $n$-qubit state observed through global depolarizing noise of unknown strength, with a fixed promised upper bound below one, using…Agentic Pipelines for Mapping Topological Codes to Quantum Hardware
Mapping a prescribed many-body Hamiltonian to a particular quantum hardware is generally an approximate process, resulting in both intended and unwanted quantum dynamics.Quartet state of the neutral nitrogen-vacancy center in diamond and optimized spin readout under near-infrared two-photon excitation
Photoionization of the excited nitrogen-vacancy center (NV-) in diamond leaves the neutral defect in a metastable quartet state of unknown energy.Efficient thermalization of one-dimensional noncommuting Hamiltonians via system-bath interactions with $Θ(n)$ ancilla qubits
We prove rapid convergence of a system-bath interaction algorithm for preparing Gibbs states of one-dimensional noncommuting Hamiltonians at every fixed positive temperature.Lossless propagation bounds for long-range fermionic interactions
We prove propagation estimates for extensive fermionic many-body interactions with polynomial time growth, no loss of spatial decay, and an optimal threshold for the polynomial spatial exponent.Surface charges and quantum reflection of hydrogen-isotope beams at grazing incidence
Experiments with cryogenic beams of hydrogen isotopes (hydrogen (H), deuterium (D), and tritium (T)) can be used to study quantum reflection from solid dielectric mirrors.Exceptional Points and Optimized Encoding in Qubit Stabilizer Codes
Continuous blind stabilizer measurements turn stabilizer codes into a Liouvillian spectral problem in which Hamiltonian terms compete with dissipative error channels.On the Failure Probability of Quantum Leftover Hashing with Bad Seeds
We study hashing against quantum adversaries, as used in cryptographic applications, and provide bounds on the probability of failure in practical settings where seeds might be reused and might be…Quantum tomography on Schwartz space
In this work we show that standard results in quantum tomography, which are typically proven in the context of Hilbert spaces, can analogously be established in the theory of Schwartz spaces.Unifying entanglement and nonclassicality via the Narcowich-Wigner spectrum
Entanglement and nonclassicality are two fundamental features of quantum mechanics which serve as resources in quantum information processing tasks and are tightly connected by two-mode mixing.Quantum Private Information Retrieval on Forests
We consider the problem of graph private information retrieval (PIR) in the quantum setting.Single-pass stochastic cooling for electron microscopy
Scientific applications of free electrons, such as in electron microscopes and particle accelerators, are limited by the brightness of available electron sources.Spacetime Emergence in the Memory of a Learning Agent
We show that the causal structure of spacetime can emerge within the memory of a learning agent performing a quantum information task.