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 61
Higher-order Parity Constraints for Quantum Approximate Optimization
The Parity Architecture was originally introduced in the context of quantum optimization algorithms to overcome hardware connectivity constraints.Two-qubit cryo-CMOS control of a spin register in diamond
Utility-scale quantum technologies will not only require a well-performing quantum platform, but also classical control hardware that is scalable, efficient, and meets the design requirements set by…Giant Rydberg Excitons Delineated as Relativistic Bound States
We examined the energy-momentum relationship of the valence band of Cu$_2$O, which has gained interest as an emerging solid host for giant Rydberg states.The Four-Qubit Hyperbolic Quadric Has Contextuality Degree 315
The contextuality degree of a set of Pauli contexts is the least number of contexts that every noncontextual $\pm1$ assignment violates.End-to-End Optimization of Partial Fault Tolerance in Neutral-Atom Arrays
Fault-tolerant (FT) quantum computation offers a pathway to quantum advantage, but its realization is hindered by its significant overhead.KrMM Recurrences: HPC-Enhanced Estimators for Nonlinear Classical Shadows
While quantum technologies are rapidly evolving, near-term applications heavily rely on hybrid quantum-classical paradigms.Observation and control of polariton noise in a thermal Rydberg atom electrometer
The establishment of metrics and control of fundamental noise sources in quantum sensing is a long-standing goal in quantum science and technology.Majorization for superpositions of nonorthogonal states and the existence of golden states
In the resource theory of superposition relative to linearly independent, nonorthogonal reference states, golden states are known for two reference states and for special overlap matrices, and all…Exploring ground state phase diagrams of Rydberg atom arrays with finite projected entangled-pair states
Rydberg atom arrays (RAA) have been advocated as a promising avenue for the quantum simulation of different exotic quantum states.Exact projective-steering boundary and sample-size optimization for angularly averaged hyperon-antihyperon states
In hyperon-antihyperon production through electron-positron annihilation, quantum steering provides a stricter test of nonclassical spin correlations than entanglement.Local Measurement Theory for Quantum Cellular Automata
The formulation of quantum measurements compatible with relativistic causality is obstructed by the tension between the locality of observable algebras and the dynamical state transformations…Beyond Fidelity: Resolving Errors in Photonic Seed State Generation
An important aspect of many linear optical quantum computing architectures is probabilistically generating small dual-rail qubit entangled states, or seed states.Non-Markovian exceptional points and information backflow: a Heisenberg reaction-coordinate approach
The primary pathway to the investigation of exceptional points (EPs) in open quantum systems has been the use of Markovian master equations.Average lower bound on magnetic double-well tunneling with asymptotically large well separation
We study tunneling between two identical, smooth, compactly supported potential wells in a constant perpendicular magnetic field, with the coupling and magnetic field fixed and the well separation…Ground-State Sampling Correspondence between Penalty-Based and Constrained Quantum Annealing
Quantum annealing generally samples degenerate ground states with nonuniform probabilities.Measurement-efficient energy estimator for quantum chemistry of photodynamic materials
Accurate modelling of chemical reaction rates requires precise correlated energy differences.Quantum Optimal Control Primer
This is a set of detailed notes that are part of a Ph.D.Phase-sensitive quantum-state texture during thermalization of a Dzyaloshinskii-Moriya Heisenberg dimer
We investigate quantum-state texture during the thermal relaxation of an anisotropic spin-$1/2$ Heisenberg dimer subject to a longitudinal magnetic field and a Dzyaloshinskii-Moriya (DM) interaction.A General Master Equation for Two Accelerated Detectors: Stationary States and Entanglement
We derive a general Gorini-Kossakowski-Lindblad-Sudarshan master equation for two co-located, uniformly accelerated two-level detectors weakly coupled to scalar fields in the Minkowski vacuum…PPT-assisted capacities of bosonic Gaussian channels
We determine the exact quantum communication and entanglement-distribution capacities of three fundamental bosonic channels, namely thermal loss, thermal amplification and additive Gaussian noise…