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arXiv 0811.2733math.PRmath-phmath.FAmath.MP
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重尾Gibbs测度的慢衰减

Slow decay of Gibbs measures with heavy tails

Cyril Roberto

摘要:

我们认为Glauber动力学相对于具有重尾的Gibbs测度是可逆的。旋转是无限的。相互作用是有界和有限范围的。自势分为两类测度,$κ$ -凹概率测度和次指数律,对于它们,已知不会发生指数衰减。我们证明,使用强制不等式,相关的无限体积半群衰减到平衡多项式和拉伸指数,分别。从而改进和推广了Bobkov和Zegarlinski以前的结果。

英文摘要:

We consider Glauber dynamics reversible with respect to Gibbs measures with heavy tails. Spins are unbounded. The interactions are bounded and finite range. The self potential enters into two classes of measures, $κ$-concave probability measure and sub-exponential laws, for which it is known that no exponential decay can occur. We prove, using coercive inequalities, that the associated infinite volume semi-group decay to equilibrium polynomially and stretched exponentially, respectively. Thus improving and extending previous results by Bobkov and Zegarlinski.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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