Abstract
We consider a spin system on a lattice with finite-range, possibly unbounded random interactions. We show that for such systems the Glauber dynamics cannot decay to equilibrium exponentially fast inL 2 even at high temperatures. Additionally, for one-dimensional systems with unbounded random couplings we prove that with probability one the corresponding Glauber dynamics has a fast (subexponential) decay to equilibrium in the uniform norm, provided that the distribution of random couplings satisfies some exponential bound.
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Zegarlinski, B. Strong decay to equilibrium in one-dimensional random spin systems. J Stat Phys 77, 717–732 (1994). https://doi.org/10.1007/BF02179458
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DOI: https://doi.org/10.1007/BF02179458