Entropy inequalities for unbounded spin systems

Entropy inequalities for unbounded spin systems
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DOI:
10.1214/aop/1039548378
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发表时间:
2002-10
影响因子:
2.3
通讯作者:
P. Pra;A. Paganoni;G. Posta
P. Pra;A. Paganoni;G. Posta
中科院分区:
数学1区
文献类型:
--
作者:
P. Pra;A. Paganoni;G. Posta

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We consider nonconservative, reversible spin systems, with unbounded discrete spins. We show that for a class of these dynamics in a high temperature regime, the relative entropy with respect to the equilibrium distribution decays exponentially in time, although the logarithmic-Sobolev inequality fails. To this end we prove a weaker modification of the logarithmic-Sobolev inequality.