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Application of large deviation theory to the mean-field phi^4-model

Ingo Hahn·Michael Kastner
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Abstract

A large deviation technique is used to calculate the microcanonical entropy function s(v,m) of the mean-field phi^4-model as a function of the potential energy v and the magnetization m. As in the canonical ensemble, a continuous phase transition is found. An analytical expression is obtained for the critical energy v_c(J) as a function of the coupling parameter J.

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Ingo Hahn, Michael Kastner. 2005-09-08. Application of large deviation theory to the mean-field phi^4-model. https://doi.org/10.1140/epjb%2Fe2006-00100-7

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