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 155
Low-Weight Canonical Logical Bases from Pair-Partition Codes
We construct complete canonical logical bases for qubit CSS codes by assigning quaternary coefficients to binary circulant permutation matrix pair-partition (CPM-PP) checks, constructing and…Electrothermal behavior of superconducting nanowires buried in a commercial CMOS process
Superconducting films native to a commercial CMOS process enable co-integration of superconducting devices (high-kinetic-inductance elements and nanowire detectors) with cryogenic CMOS on one…Succinct Arguments for QMA from Collapsing Hash Functions
We prove the existence of succinct arguments for QMA, assuming only the existence of collapsing hash functions.Bounding Retraining Equivalence and the Deletion Floor in Materials Machine Unlearning
In materials machine learning, closely related retained structures can sustain accurate property predictions even after removing a specific record, rendering post-deletion prediction error an…Learning sparse quantum states from single-qubit measurements
We study the problem of learning a sparse quantum state, an $n$-qubit quantum state whose density matrix has at most $s$ nonzero matrix entries in an unknown product basis.Optimal performance in a chaotic Floquet quantum battery
We study a quantum battery consisting of $N$ qubits interacting uniformly with each other.The power of oracle access: Optimal sample and query complexity of the abelian state hidden subgroup problem
In the quest to identify further quantum algorithms exhibiting superpolynomial speed-ups, a recurring theme is that the complexity of a problem is largely shaped by the input access model.An Optimal Quantum Linear Systems Algorithm
In the quantum linear systems problem (QLSP), we are given query access to a $d$-sparse $N\times N$ matrix $A$ with condition number $κ$, and the ability to prepare a quantum state proportional to a…Optimal Query Complexity for Ground-State Preparation
We determine the optimal query complexity of ground-state preparation to trace-distance error $\varepsilon$ when an energy threshold in the spectral gap is known.Speed-Fisher Information: Chaos and Irreversibility in Classical and Quantum Dynamics
We propose a unified perspective on classical and quantum chaos based on the sensitivity of a system's stationary states to slow driving.A Si-on-SiC Platform for Interfacing with Vanadium Dopants in the Telecom O-Band
Vanadium color centers in silicon carbide (SiC) offer telecom O-band emission, sub-microsecond optical lifetimes, and second-scale spin relaxation times, rendering them promising candidates for…Multilevel Plaquette-Space Sampling for Lattice Gauge Theories with Local Constraint Solves
Lattice gauge theories are an important class of physical models with high-dimensional structured distributions that underpin first-principles calculations in particle, nuclear, and condensed-matter…Discrete Scale Invariance of Ising Mesons
Discrete scale invariance often arises from resonant few-body or singular scale-invariant dynamics.Low Frequency Gravitational Wave Detection with Gravito-Magnetism
The detection of gravitational waves in the low-frequency band (10 nHz to 1 micro-Hz) using inner solar system proof masses is severely limited by Newtonian gravity gradient noise (GGN) sourced by…One-dimensional quantum Gibbs states in constant circuit depth
We prove that the Gibbs state of any spin chain can be exactly decomposed into a mixture of product states over contiguous blocks of qubits with bounded length, at any constant temperature.Deciding the Attainability of the Multiparameter Quantum Fisher Information is NP-Hard
The quantum Fisher information (QFI) sets a fundamental bound on the attainable precision when estimating multiple parameters simultaneously.Topological Band Theory for High-Dimensional Parameter Spaces
We study the topological band theory of quantum Hall systems in which the adiabatic flux parameters of an external gauge potential form a high-dimensional manifold.Chern-number estimation: nearly optimal quantum algorithm and provable quantum speedup
Topological phases of matter are characterized by global properties of quantum states beyond conventional local order parameters.Characterizing quantum precision enhancement for multiple currents in open quantum systems
The kinetic uncertainty relation (KUR) constrains fluctuations of individual currents in classical nonequilibrium systems in terms of the dynamical activity, which quantifies the average number of…Asymptotically Optimal Mixed-State Cloning
We determine asymptotic global fidelities of cloning generic mixed states with simple (non-degenerate) full-rank spectra.