Uniform Lipschitz Functions on the Triangular Lattice Have Logarithmic Variations.
Uniform Lipschitz Functions on the Triangular Lattice Have Logarithmic Variations.
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DOI:
10.1007/s00220-020-03920-z
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发表时间:
2021
影响因子:
2.4
通讯作者:
Manolescu I
中科院分区:
文献类型:
--
作者:
Glazman A;Manolescu I
Uniform integer-valued Lipschitz functions on a domain of size N of the triangular lattice are shown to have variations of order . The level lines of such functions form a loop O(2) model on the edges of the hexagonal lattice with edge-weight one. An infinite-volume Gibbs measure for the loop O(2) model is constructed as a thermodynamic limit and is shown to be unique. It contains only finite loops and has properties indicative of scale-invariance: macroscopic loops appearing at every scale. The existence of the infinite-volume measure carries over to height functions pinned at the origin; the uniqueness of the Gibbs measure does not. The proof is based on a representation of the loop O(2) model via a pair of spin configurations that are shown to satisfy the FKG inequality. We prove RSW-type estimates for a certain connectivity notion in the aforementioned spin model.
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