We calculate the thermodynamic entropy of the mean-field phi(4) spin model in the microcanonical ensemble as a function of the energy and magnetization of the model.
Negative susceptibilities and nonequivalent ensembles for a mean-field $phi^4$ spin model / A. CAMPA; S. RUFFO; H. TOUCHETTE. - In: PHYSICA. A. - ISSN 0378-4371. - ELETTRONICO. - 385:(2007), pp. 233-248. [0.1016/j.physa.2007.06.004]
Negative susceptibilities and nonequivalent ensembles for a mean-field $phi^4$ spin model
RUFFO, STEFANO;
2007
Abstract
We calculate the thermodynamic entropy of the mean-field phi(4) spin model in the microcanonical ensemble as a function of the energy and magnetization of the model.
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