Critical behavior of strongly coupled lattice QCD at finite temperature

TL;DR

This paper investigates the critical phenomena of strongly coupled lattice QCD at finite temperature, revealing second order phase transitions and critical exponents using a Hamiltonian mean field approach.

Contribution

It introduces a mean field solution for lattice QCD at finite temperature and compares critical behaviors for different fermion formulations.

Findings

Identifies second order phase transition in lattice QCD at finite T

Finds similar critical exponents for Kogut-Susskind and Wilson fermions

Provides a mean field framework for analyzing thermal excitations

Abstract

We study the critical behavior of lattice Quantum Chromodynamics (QCD) in the strong coupling approximation with Kogut-Susskind and Wilson fermions at finite temperature ($T$) and zero chemical potential. Using the Hamiltonian formulation we construct a mean field solution to the equation of motion at finite $T$ and use it to study the elementary thermal excitations and to extract some critical exponents characterizing the observed second order phase transition. We find similar critical behaviors for Kogut-Susskind and Wilson fermions at finite $T$