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 140
Submodularity of entropy under quantum convolution
We develop a submodular framework for the von Neumann entropy of discrete quantum convolutions, providing a noncommutative counterpart to the direct side of entropic additive combinatorics.Quantum Markov State Models for Metastable Dynamics
Open quantum systems can rapidly lose most microscopic information, leaving only a few degrees of freedom to govern their long-time dynamics.Universal distillation of quantum entanglement
Distillable entanglement---the maximum rate of Bell states extractable from the given noisy entangled states via local operations and classical communication (LOCC)---has been a central quantity to…Quantum Log-Determinant Methods for Torsion-Sensitive Topological Data Analysis
Betti numbers are central to topological data analysis but fail to capture torsion in integral homology.Improved quantum volume estimation with transducers and amortized quantum walks
The volume estimation problem is a classic task in computational geometry.Purification enables an unbounded query separation in sequential quantum channel discrimination
Purifications are often used as a convenient mathematical representation of quantum states and channels when constructing protocols for quantum information processing tasks.NLTM Hamiltonians from gauged sheaf quantum locally testable codes
Understanding the complexity of low-energy quantum states is a central problem in quantum complexity theory and many-body physics.Causal inequalities witness non-stabilizerness
Stabilizer operations describe a fragment of quantum theory that is known to be efficiently classically simulable, thanks to the Gottesman-Knill theorem.A physical and universal model of bosonic computations with Solovay-Kitaev theorem
Bosonic quantum systems are among the leading architectures for quantum information processing, offering continuous-variable degrees of freedom with strong error-correction capabilities.Randomness of exact unitary designs under symmetry
We define the unitary design strength of a finite unitary ensemble to be the maximal integer $t$ for which its $t$-th statistical moment is identical to that of the unitary group.Perfect non-local quantum computation is impossible
Non-local quantum computation (NLQC) asks two parties to apply a joint operation to their quantum inputs using an entangled resource state and one round of simultaneous quantum communication.A Quantum Algorithm for $st$-Transport on Flat Connection Graphs
We study a generalization of undirected $st$-connectivity to graphs whose edges carry quantum operations.Optimal Purity Estimation with Incoherent Measurements
In this work, we consider the fundamental task of estimating the purity of an unknown state to within $\textit{multiplicative}$ error $\varepsilon$.An (almost) efficient classical algorithm for sampling from typical Gibbs states
Gibbs state preparation has emerged as a potential avenue for quantum advantage in the study of physical systems.From Random Quantum Codes to Explicit qLDPC Codes via Local Properties
Constructing explicit codes matching the parameters of random codes has been a central and largely elusive question in coding theory.Quantum oblique eigenprojection
Every square matrix decomposes its underlying Hilbert space into generalized, nonorthogonal eigensubspaces.A General Theory of Multi-Resource Theories Involving Finite-Group Asymmetry
Resource theories provide a universal framework for quantifying properties of quantum states, such as entanglement, magic, athermality, and asymmetry, as resources under various constraints…Self-testing the toric code against classical communication
Device-independent self-testing certifies a multipartite quantum state from the correlations it produces alone, without assumptions on the inner workings of the devices.Quantum Algorithms for Minimum Generating Set
In this paper, we present a polynomial-time quantum algorithm for computing a minimum-sized generating set of solvable black-box groups.Quantum List Recovery and Decoding: Achievability and Limitations
Quantum list recovery (QLR) and quantum list decoding (QLD) seek short lists of logically distinct Pauli corrections consistent with a syndrome and prescribed error constraints.