Free Energy, Gibbs Measures, and Glauber Dynamics for Nearest-Neighbor Interactions
Free Energy, Gibbs Measures, and Glauber Dynamics for Nearest-Neighbor Interactions
复制标题
最近邻相互作用的自由能、吉布斯测度和格劳伯动力学
DOI:
10.1007/s00220-022-04537-0
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发表时间:
2022
影响因子:
2.4
通讯作者:
Shriver, Christopher
中科院分区:
文献类型:
--
作者:
Shriver, Christopher
We extend results of Richard Holley beyond the integer lattice to a large class of countable groups which includes free groups and all amenable groups: for nearest-neighbor interactions on the Cayley graphs of such groups, we show that a shift-invariant measure is Gibbs if and only if it is Glauber-invariant. Moreover, any shift-invariant measure converges weakly to the set of Gibbs measures when evolved under the corresponding Glauber dynamics. These results are proven using a notion of free energy density relative to a sofic approximation by homomorphisms, which avoids the boundary problems which appear when applying a standard free energy method in a nonamenable setting. We also show that any measure which minimizes this free energy density is Gibbs.
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