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arXiv · 2311.18831

Schwinger-Dyson equation on the complex plane -- A four-fermion interaction model at finite temperature --

Hidekazu Tanaka·Shuji Sasagawa
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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.

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Hidekazu Tanaka, Shuji Sasagawa. 2023-11-30. Schwinger-Dyson equation on the complex plane -- A four-fermion interaction model at finite temperature --. https://arxiv.org/abs/2311.18831

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