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Phase transitions in models with discrete symmetry

State Scientific Center Institute for Theoretical and Experimental Physics, Bolshaya Cheremushkinskaya, 25, Moscow, Russia

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and

A. I. Romanov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe shosse, 31, Moscow, Russia

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https://doi.org/10.1142/S0217732314502009Cited by:0 (Source: Crossref)

Abstract

We investigate a class of models with a massless fermion and a self-interacting scalar field with the Yukawa interaction between these two fields. The models considered are formulated in two and four spacetime dimensions and possess a discrete symmetry. We calculate the chiral condensates which are calculated in the one-loop approximation. We show that the models have phase transitions as a function of the coupling constants.

Keywords:

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