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Effects from inhomogeneities in the chiral transition

Bruno G. Taketani·Eduardo S. Fraga
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Abstract

We consider an approximation procedure to evaluate the finite-temperature one-loop fermionic density in the presence of a chiral background field which systematically incorporates effects from inhomogeneities in the chiral field through a derivative expansion. We apply the method to the case of a simple low-energy effective chiral model which is commonly used in the study of the chiral phase transition, the linear sigma-model coupled to quarks. The modifications in the effective potential and their consequences for the bubble nucleation process are discussed.

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Bruno G. Taketani, Eduardo S. Fraga. 2006-10-17. Effects from inhomogeneities in the chiral transition. https://doi.org/10.1103/physrevd.74.085013

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