Schwinger-Dyson equation on the complex plane -- A four-fermion interaction model at finite temperature --
High Energy Physics - Phenomenology
2024-07-09 v4 High Energy Physics - Theory
Nuclear Theory
Abstract
We extend the Schwinger-Dyson equation (SDE) on the complex plane, which was treated in our previous research, to finite temperature. As a simple example, we solve the SDE for a model with four-fermion interactions in the (1+1) space-time dimensions at strong coupling region. We investigate the properties of the effective mass and energy for the fermions, especially near the phase transition temperature.
Keywords
Cite
@article{arxiv.2311.18831,
title = {Schwinger-Dyson equation on the complex plane -- A four-fermion interaction model at finite temperature --},
author = {Hidekazu Tanaka and Shuji Sasagawa},
journal= {arXiv preprint arXiv:2311.18831},
year = {2024}
}
Comments
18 pages, 5 figures