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arXiv · 1703.09022

Zero Points of Chiral Condensate

V. G. Ksenzov·A. I. Romanov
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Abstract

We investigate a model with a massless fermion and a massive scalar field with the Yukawa interaction between these two fields. The model possess a discrete symmetry. The chiral condensate is calculated in one-loop approximation in $(1+1)$-dimensional spacetime. It was shown that the chiral condensate vanishes at two different values of the coupling constant. At the first of them there is a phase transition in which the discrete symmetry is restored. At the second zero of the chiral condensate it takes place a phase transition which distinguishes the positive $\mu^2$ from the negative $\mu^2$, where $\mu^2$ is an effective mass of the scalar field.

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V. G. Ksenzov, A. I. Romanov. 2017-03-27. Zero Points of Chiral Condensate. https://arxiv.org/abs/1703.09022

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