Extremal Ising Gibbs States on Lobachevsky lattices
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866909702992953344 |
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| author | D'Achille, Matteo Coquille, Loren Ny, Arnaud Le |
| author_facet | D'Achille, Matteo Coquille, Loren Ny, Arnaud Le |
| contents | We exhibit an uncountable family of extremal inhomogeneous Gibbs measures of the low temperature Ising model on regular tilings of the hyperbolic plane. These states arise as low temperature perturbations of local ground states having a sparse enough set of frustrated edges, the sparseness being measured in terms of the isoperimetric constant of the graph. This result is implied by an extension of the article [5] on regular trees to non-amenable graphs. We moreover argue how we can deduce the extremality of an uncountable subset of the Series--Sinai states [23] at low temperature. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2504_19553 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Extremal Ising Gibbs States on Lobachevsky lattices D'Achille, Matteo Coquille, Loren Ny, Arnaud Le Probability Statistical Mechanics Mathematical Physics 60K35 (Primary), 82B20 (Secondary) We exhibit an uncountable family of extremal inhomogeneous Gibbs measures of the low temperature Ising model on regular tilings of the hyperbolic plane. These states arise as low temperature perturbations of local ground states having a sparse enough set of frustrated edges, the sparseness being measured in terms of the isoperimetric constant of the graph. This result is implied by an extension of the article [5] on regular trees to non-amenable graphs. We moreover argue how we can deduce the extremality of an uncountable subset of the Series--Sinai states [23] at low temperature. |
| title | Extremal Ising Gibbs States on Lobachevsky lattices |
| topic | Probability Statistical Mechanics Mathematical Physics 60K35 (Primary), 82B20 (Secondary) |
| url | https://arxiv.org/abs/2504.19553 |