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 154
Gauge freedom and efficient algorithms for Lindbladian learning
We study the problem of learning a local Lindbladian in the presence of state-preparation-and-measurement (SPAM) noise.Generalized LIMDDs: Succinctness and Canonicity for Decision Diagrams Modulo a Group
A reduced ordered decision diagram is the minimal automaton of a function on words of fixed length: its nodes are the residuals, and reduction is the Myhill--Nerode quotient.Circuit-level benchmarks of GKP-concatenated qLDPC Codes
Scalable fault-tolerant quantum error correction based on Gottesman-Kitaev-Preskill (GKP) codes requires finite-rate outer codes that can exploit analog GKP information under realistic circuit noise.Distributional Variants of the Aaronson-Ambainis Conjecture
A longstanding conjecture in quantum complexity theory asserts that, under the uniform input distribution, quantum query algorithms can be polynomially simulated by classical query algorithms.Zero Knowledge Proofs in Quantum Networks
Zero-knowledge proofs (ZKPs) enable the verification of a statement without revealing any information beyond its validity and constitute a fundamental primitive in cryptography and information theory.Heuristic lower bounds on real Grothendieck constants of finite and infinite order
We propose candidate lower bounds on the real Grothendieck constants $K_{\mathrm G}(d)$ and their infinite-dimensional limit $K_{\mathrm G}$ using rotationally invariant cubic kernels.Dilation theorem for continuum quantum stochastic processes
Connecting mathematical formalism in open quantum systems to its underlying physics necessitates the notion of a dilation, a way to bridge stochastic dynamics with deterministic Schrödinger…Fixed-Time Gaussian State Transfer via Collective Dissipation in a Fully Static Architecture
We establish a fully static, dissipation-only primitive for Gaussian state transfer in which collective coupling to a shared environment fixes a single transfer time without coherent transport or…Efficient classical algorithm for estimating linear statistics of Boson Sampling
Boson Sampling is a prominent candidate for the demonstration of quantum computational advantage but it remains unclear whether a large-scale boson sampler can find useful computational applications.Improving the Stability of the Hierarchical Equations of Motion for Open Quantum Systems with Strong Coupling to Structured Bosonic Baths
The hierarchical equations of motion (HEOM) approach is one of the most powerful methods avail- able to simulate the dynamics of open quantum systems.Temporal trade-offs in high-dimensional entanglement: a comprehensive noise model for optimal time-bin QKD protocols
High-dimensional time-bin entanglement is known for having high potential for quantum key distribution (QKD) applications, being easily implementable, robust and may offer better keyrates than…Fourier-Geometric Circuit Design for Gate and Entanglement Placement in Quantum Neural Networks
The output of a parameterized quantum circuit (PQC) can be expressed as a finite Fourier series whose accessible frequencies are fixed by the data-encoding gates.Electron decoherence in cylindrical holes and circular apertures
The coherence of free electrons sets fundamental limits on the resolution and contrast of phase-sensitive electron microscopy because coherence is lost whenever the electron leaves a distinguishing…How fast can a parent estimate the value of their children? A quantum algorithm for stochastic games
We give a quantum algorithm for stochastic $2$-player games.Induced Coherence in Quantum and Classical Interferometry: Origin and Control
The wave-particle duality that manifests in the Young's double-slit interferometry satisfying the well known Englert-Greenberger-Yasin inequality has recently been shown to obey a universal triality…Analysis of asymmetric errors in NISQ experiments
This paper continues our analysis of NISQ experiments and especially the Google 2019 ``quantum supremacy" experiment.Sublinear Copies Suffice for Fidelity Estimation with Pauli Measurements
We present a protocol that estimates the quantum fidelity, up to precision $\varepsilon$, between a known target state and unknown lab-prepared state with sublinear, $o(d^{0.9908}/\varepsilon^2)$…Quantum Query Complexity Beyond the Worst Case
Smoothed analysis is a central framework in classical algorithms for explaining the performance of algorithms beyond the worst case, often explaining why algorithms perform well in practice.QC-Stark: A Multi-Task Benchmark Revealing Capability Dissociations in LLMs Evaluated on Quantum Computing Tasks
We introduce QC-Stark, a benchmark for evaluating large language models (LLMs) on 11 quantum computing (QC) tasks, spanning circuit construction, debugging, compilation, error correction, and…Exponential lower bounds for low-degree strategies in position-based quantum cryptography
Non-local quantum computation (NLQC) consists on the implementation of a bipartite unitary $U_{AB}$ by two cooperating distant players by means of a two-round protocol with a single intermediate…