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- Title
Application of large deviation theory to the mean-field $\boldsymbol{\varphi}^\mathsf{4}$ -model.
- Authors
Hahn, I.; Kastner, M.
- Abstract
A large deviation technique is used to calculate the microcanonical entropy function s(v,m) of the mean-field ϕ4-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 vc(J) as a function of the coupling parameter J.
- Subjects
ENTROPY (Information theory); MEAN field theory; POTENTIAL energy surfaces; MAGNETIZATION; MAGNETIC coupling
- Publication
European Physical Journal B: Condensed Matter, 2006, Vol 50, Issue 1/2, p311
- ISSN
1434-6028
- Publication type
Article
- DOI
10.1140/epjb/e2006-00100-7