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 91
GPU-Based Parallel BP Decoding for Quantum LDPC Memory
Quantum low-density parity-check (qLDPC) decoding requires reliable corrections and low latency over long syndrome histories.Bicycle Race: small two-block codes on the Pareto frontier
Two-block group-algebra codes are among the simplest quantum LDPC codes, and many of them are translation invariant on a twisted torus, which suits neutral-atom arrays and other platforms with…An Annealing-based Quantum Neural Network with Discrete Wavelet Transforms for Enhanced Air Pollution Nowcasting
Air pollution poses a significant threat to public health, exacerbated by the rapid industrialization and urbanization of modern society.Maximally antiflat fixed-particle-number fermionic states
Fermionic Gaussian states are completely characterized by their two-point correlations, making the covariance matrix a natural reference for quantifying non-Gaussian structure.Quantum Query Complexity of Maximum Degree and its Generalizations
We study the quantum query complexity of several basic graph problems.A scalable sample-based quantum diagonalization solver for general Pauli-sum Hamiltonians
A scalable ground-state solver to be used in sample-based quantum diagonalization (SQD) is presented.A Warped Born Rule Turns an Observer into a Maxwell's Demon
Quantum mechanics seems to be an incredibly delicate theory.An entangling Hubbard quasiparticle collider on a digital quantum processor
Scattering of quasiparticles provides direct access to the interactions that govern strongly correlated systems.Hamiltonian-Dependent Compressibility and Physical Preservation in Approximate Quantum Compilation using Tensor Networks
Approximate quantum compilation (AQC) using tensor networks provides a promising route to reducing the circuit resources required for quantum simulation.Electric-dipole-induced nuclear electric resonance in silicon
The nuclear spin of a phosphorus atom in silicon is considered as a promising quantum information carrier for quantum computing due to its long coherence time.Categorifying Quantum Spin Systems
We develop a homotopical framework for understanding the space of quantum spin systems based on topological $n$-nets, which assign associative unital algebras to local regions in an $n$-dimensional…Experimental observation of Higgs oscillations and their power-law decay across pairing regimes in a cavity QED quantum simulator
Understanding how pairing correlations in superconductors evolve out of equilibrium is a central challenge in quantum many-body physics.Semiclassical state on algebra of observables for de Sitter space and time reversal symmetry
In de Sitter static patch holography, coupling bulk quantum fields to an observer's dynamical clock yields a type II$_1$ von Neumann algebra $\mathcal{M}_+$ of gauge-invariant observables.Compass in the Mirror: Quantum Backpropagation with the Hopf Ansatz
A variational quantum state may have many control angles, and its complete gradient contains one derivative for each.Lifting an $[n,k,d]$ Binary Linear Code to an $[[n,k,d]]$ Quantum Stabilizer Code
The codeword stabilized (CWS) framework provides a systematic method for constructing quantum error correcting codes from a simple undirected graph and a classical code.Below-threshold execution of fault-tolerant ripple-carry addition on a trapped-ion quantum computer
We deploy a universal fault-tolerant quantum computing (FTQC) architecture based on error-detecting $[\![8,3,2]\!]$ and $[\![4,2,2]\!]$ codes on Quantinuum's Helios-1 trapped-ion quantum computer.Quantum Signal Processing Phase Factorization via Logarithmic Derivatives
Quantum signal processing (QSP) requires the efficient computation of phase factors associated with a polynomial transformation.Separating entanglement at emission from femtoscopic correlations
We investigate how femtoscopic correlations modify the relation between the spin entanglement of emitted particle pairs and that of pairs selected at a given relative momentum.Competitive scaling of small-subsystem-optimization heuristics for LABS
The low autocorrelation binary sequences (LABS) problem, often formulated as a spin-lattice energy-minimization problem, is a combinatorial optimization problem with a very rugged energy landscape.Demonstration of subspace-search variational quantum eigensolver using photonic orbital angular momentum qudits
Accurate excited state energies are essential for interpreting fluorescence and photochemical processes, yet variational quantum eigensolvers (VQEs) on noisy intermediate-scale quantum (NISQ)…