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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Deterministic positioning accuracy of B centers in hBN by electron irradiation
Hexagonal boron nitride (hBN) is a promising material platform for quantum technologies, enabling both the realization of nanophotonic devices and the hosting of point defects that act as…Quantum state texture of maximal-resource Fourier states under Hawking radiation
Quantum state texture (QST) is a recently proposed quantum resource that characterizes the nonuniformity of a density matrix in a given computational basis.Bell's go theorem: regaining local causality with a new notion of realism
Bell's theorem is popularly stated as the inconsistency of quantum theory with local realism.Towards the Geometry of Quantum Optical Measurements: Kraus Trajectories in the Instrumental Weyl-Heisenberg Group Manifold
Since ancient Greek times, geometry has been a method by which humans can make inferences, by the use of similar triangles, about the world far beyond their immediate senses.Emergent quantum algebras in dissipative time crystals
Strong dynamical symmetries provide an algebraic description of persistent oscillations in open quantum systems governed by the Lindblad equation.Closed-form construction of exceptional points in a two-parametric PT-symmetric large-matrix model
Stable bound states living on a discrete one-dimensional N-point lattice are assumed generated by a certain two-parametric PT symmetric potential $V=V(A,B)$.Bosonic Quantum Conditional Mutual Information and Bose-Einstein Condensation
This article aims to introduce the bosonic asymmetric quantum conditional mutual information (QCMI), $I_{B}(A; B|C)$, as a rigorously defined information-theoretic quantity for continuous-variable…Reverse quantum aging: Restoring rhythmicity from quantum aging state
Quantum aging transition has recently been reported, whereby the oscillatory dynamics of a network of globally coupled quantum self-sustained oscillators is degraded sharply when the fraction of…Euler's thirty-six officers need not all be entangled: real AME(4,6), families and classification
Absolutely maximally entangled states of four six-level systems, AME$(4,6)$, are the quantum solutions of Euler's problem of the thirty-six officers.Fisher-Information Certification from Bell Statistics: CHSH Bounds, Information Loss, and Finite-Data Guarantees
Bell-test data are typically used to certify nonlocal correlations, while quantum metrology is concerned with the sensitivity of measurement statistics to unknown parameters.Realistic simulation of universal multiport interferometers with losses within a Gaussian formalism
Photonic technologies are among the leading platform contenders for demonstrating quantum advantage.The Quantum Character Transform
Bastidas et al. (2025) highlighted the importance of exploiting group symmetries to reduce computational overhead and unify simulation methods across both condensed matter physics and ab initio…Geodesic steering for rapid dissipative entanglement distribution
We describe an optimal-control strategy designed to accelerate the dissipative preparation of complex, highly entangled quantum many-body states.Exact Gaussian--Hermite closure of the mapping quantum--classical Liouville equation
In the Meyer--Miller--Stock--Thoss mapping representation, the Liouville operator of the quantum--classical Liouville equation contains an excess coupling term in addition to the Poisson bracket.Direct polarisation-state reconstruction with a temporal pointer: accessible states, resolution and optimal coupling
Weak measurements are used to amplify small signals, to address foundational questions, and to characterise quantum states without tomography.Geomagic Square Representation of a Real AME$(4, 6)$ State
Seeking a pictorial representation of four-party absolutely maximally entangled (AME) states of local size six, we independently construct a real AME$(4,6)$ state from a table of signed Pauli…Thermal aliases in quantum noise: sampling clocks and pulse widths
Can collective quantum-noise measurements distinguish different mode temperatures from one common temperature when the coupling spectrum is unknown?Mutual information across the commensurate--incommensurate crossover and near the Kosterlitz--Thouless point of the spin-$\tfrac12$ $J_1$--$J_2$ Heisenberg chain
What quantum mutual information adds to conventional correlation functions is often unclear.Foundations for a Lens of Quantum Governance
The second quantum revolution is a revolution of information.Vortex structures in momentum distributions from multi-pair production
The vortex structures in the momentum distributions of multiple particle-antiparticle pairs produced from the vacuum by a spatially uniform, time-varying electric field with arbitrary polarization…