Abstract
We study continuous and discrete spin systems on a lattice with random interactions of finite range. In particular for sufficiently large interactions we prove no spectral gap property in the high temperature region. Moreover we show that in two dimensions, if the temperature is sufficiently high and the probability of interaction to be large is small enough, we have an almost sure stretched exponential upper bound for the decay to equilibrium.
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Communicated by Ya. G. Sinai
Supported by EEC grant SC1-CT92-784.
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Guionnet, A., Zegarlinski, B. Decay to equilibrium in random spin systems on a lattice. Commun.Math. Phys. 181, 703–732 (1996). https://doi.org/10.1007/BF02101294
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DOI: https://doi.org/10.1007/BF02101294