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 133
Constant Rate Codes with Fully Addressable Transversal T: Good Codes, Sparse Checks
Recent work by Wills constructed codes with constant rate and transversal $T$.Entropy threshold: A simple proxy for performance of quantum error correction
The rapidly growing landscape of quantum error-correction (QEC) protocols has produced a wealth of numerical data, but comparatively few heuristics for understanding and predicting their performance.Provable Classical and Quantum Local Algorithms for Max-$k$-Cut and Quantum Advantage at Moderate Girth
Broadening the study of quantum optimization algorithms from binary to $k$-element alphabets has been shown to open new avenues for potential quantum advantage.Fixed-Point Bifurcations and Path-Information Bounds in Nonlinear Exceptional-Point Sensing
Nonlinear exceptional points (NEPs) were proposed to circumvent the noise--responsivity cancellation that limits linear exceptional-point sensors.Engineered Dissipation for Thermal-State Tracking Across Quantum Criticality
Engineering dissipation has emerged as a powerful strategy for controlling quantum many-body dynamics, complementing purely coherent control for state preparation.Quantum circuit compilation with constant overhead
Compiling a continuous gate set to a discrete universal gate set generally incurs an overhead.Optimal testing of fermionic and bosonic Gaussian states
We study the problem of property testing quantum states: given a pure state $|ψ\rangle$ that either (A) belongs to some class $C$ of pure states, or (B) is $\varepsilon$-far in trace distance from…Complete parameterization and parameter-space topology of discrete Wigner representations on $d \times d$ phase space
Toroidal discrete Wigner functions (DWFs) for finite-dimensional systems are non-unique.Metachecks in Bivariate Bicycle Codes: Syndrome Distance, Measurement Faults, and Repair Limits
Faulty syndrome measurements can corrupt an otherwise correct quantum-error correction step.An uncertainty principle for entanglement
Consider two orthonormal bases of a bipartite Hilbert space such that states in one basis are weakly entangled and states in the other are strongly entangled.Geometric Characterization and Feasible Region Analysis of Bipartite Qutrit Bound Entanglement
We characterize bound entanglement in bipartite qutrit systems by combining the Positive Partial Transpose (PPT) criterion with a structural, non-completely positive map.Quantum Frozen--Oseen homotopy analysis method with LCHS for solving nonlinear partial differential equations
Nonlinear partial differential equations (PDEs) underpin computational fluid dynamics, yet resolving nonlinear transport on fine grids remains computationally demanding.A Width-Matched Comparison of Hybrid Quantum-Classical Self-Supervised Learning for Fingerprint Recognition
Fingerprint recognition is a widely deployed biometric, but supervised training requires large labeled enrollment sets.Computing electron overlap integrals for Gausslet orbitals on cubic lattices
Gausslet orbitals on a cubic lattice, introduced in [Steven R. White, J. Chem.The twisted convolution identity and ghost $r$-SICs from finite quantum dilogarithms
Radchenko and Wheeler (RW) recently proved a finite pentagon relation for real quadratic special values of the modular quantum dilogarithm and used it to establish the rank-$1$ twisted convolution…Metrological Benchmarking of Random Quantum Circuits
Random circuit sampling is a leading approach to demonstrating quantum computational advantage, but benchmarking noisy implementations through linear cross-entropy requires costly calculations of…Breaking the Bounded Entanglement Barrier for Quantum Position Verification
Position verification, introduced by Chandran et al. (SIAM J. Computing 2014), allows verifiers to test a prover's claimed position by an interactive protocol.Multipartite entanglement hidden in vector-chiral correlations of spin-1/2 chains
Characterizing entanglement in quantum materials through experimentally accessible observables remains a central challenge.Optimal learning of covariant quantum states and channels
We give collective tomography protocols for quantum states and channels with known symmetries, using random purification and dilation to reduce learning to pure-state estimation.Bounds on adiabatic path geometry from the width class of the gap profile
In an adiabatic evolution, the wave function follows the path of ground states $|Φ_0(s)\rangle$ of a Hamiltonian $H(s)$ as $s$ is tuned from $0$ to $1$.