Finite temperature QED3 with light fermions

TL;DR

This paper investigates finite temperature effects in non-compact QED3 with light fermions, analyzing chiral symmetry restoration, the zero-temperature spectrum, and implications for high-Tc superconductivity.

Contribution

It provides the first detailed simulation of both quenched and unquenched non-compact QED3 at finite temperature, including chiral symmetry restoration and spectral analysis.

Findings

Chiral symmetry is restored at high temperature.

Zero temperature spectrum and dynamical fermion mass are computed.

Estimated ratio of mass gap to critical temperature relevant for high-Tc superconductivity.

Abstract

Non-compact QED3 is simulated both in the quenched and unquenched cases. In particular, we investigate the restoration of chiral symmetry at finite temperature. We also compute the zero temperature spectrum of the theory, including (in the quenched case) the dynamical fermion mass. From these two set of data, one can obtain estimates for the ratio of the mass gap to the critical temperature, of particular interest for applications to high-Tc superconductivity.