Affiliation:
1. Rikkyo University , Tokyo 171-8501 , Japan
Abstract
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 (1+1) space-time dimensions in the strong coupling region. We investigate the properties of the effective mass and energy for the fermions, especially near the phase transition temperature.
Publisher
Oxford University Press (OUP)