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Breather lattices as pseudospin glasses

M. Eleftheriou·G. P. Tsironis
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Abstract

We study the thermodynamics of discrete breathers by transforming a lattice of weakly coupled nonlinear oscillators into an effective Ising pseudospin model. We introduce a replica ensemble and investigate the effective system susceptibilities through the replica overlap distribution. We find that a transition occurs at a given temperature to a new phase characterized by a slow decay of the relevant correlation functions. Comparison of long time pseudospin correlation functions to maximal replica overlap demonstrates that the high temperature phase has glassy-like properties induced by short range order found in the system.

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BibTeXRIS

M. Eleftheriou, G. P. Tsironis. 2003-08-05. Breather lattices as pseudospin glasses. https://arxiv.org/abs/cond-mat/0308070

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