Equivalence of Canonical and Microcanonical Ensembles for Euclidean Lattices

[2607.23526] Equivalence of Canonical and Microcanonical Ensembles for Euclidean Lattices Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search Mathematics > Probability arXiv:2607.23526 (math) [Submitted on 26 Jul 2026 ( v1 ), last revised 15 Aug 2026 (this version, v2)] Title: Equivalence of Canonical and Microcanonical Ensembles for Euclidean Lattices Authors: Ziyang Zhu View a PDF of the paper titled Equivalence of Canonical and Microcanonical Ensembles for Euclidean Lattices, by Ziyang Zhu View PDF HTML (experimental) Abstract: We study the equivalence of canonical and microcanonical ensembles for quadratic Hamiltonians on Euclidean lattices. The answer depends on the arithmetic structure of the energy spectrum: exact-energy microcanonical ensembles converge locally to the canonical Gibbs law in the lattice case, but may retain additional arithmetic information in the nonlattice case. We show that this obstruction disappears after replacing an exact energy shell by any fixed-width energy window. Using uniform local central limit theorems, we also obtain sharp asymptotics for the corresponding state counts and recover Bost's thermodynamic entropy. Comments: 17 pages, comments welcome! Subjects: Probability (math.PR) ; Mathematical Physics (math-ph) MSC classes: 60F05, 82B30, 11H06 Cite as: arXiv:2607.23526 [math.PR] (or arXiv:2607.23526v2 [math.PR] for this version) https://doi.org/10.48550/arXiv.2607.23526 Focus to learn more arXiv-issued DOI via DataCite Submission history From: Ziyang Zhu [ view email ] [v1] Sun, 26 Jul 2026 07:50:23 UTC (15 KB) [v2] Sat, 15 Aug 2026 02:08:26 UTC (17 KB) Full-text links: Access Paper: View a PDF of the paper titled Equivalence of Canonical and Microcanonical Ensembles for Euclidean Lattices, by Ziyang Zhu View PDF HTML (experimental) TeX Source view license Current browse context: math.PR < prev | next > new | recent | 2026-07 Change to browse by: math math-ph math.MP References & Citations NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab) Major funding support from

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