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Generalized Random Energy Model II
Authors:N K Jana  B V Rao
Institution:(1) Department of Mathematics, Bijoy Krishna Girls’ College, Howrah and Stat-Math Unit, Indian Statistical Institute, Kolkata, India;(2) Stat-Math Unit, Indian Statistical Institute, Kolkata, India
Abstract:The formulae for the free energy, when the driving distributions in Generalized Random Energy Model (GREM) are of the form $$Ce^{-|x|^\gamma}$$ for γ ≥ 1 are derived. The large deviation technique allows the use of different distributions at different levels of the GREM. As an illustration we consider, in detail, a two level GREM with exponential and Gaussian distributions. This simple case itself leads to interesting phenomena.
Keywords:spin glasses  large deviation principle  free energy
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