Thermodynamics of Quasi-Particles

TL;DR

This paper generalizes thermodynamic solutions for systems with temperature-dependent Hamiltonians, explores their physical relevance, and applies them to quasi-gluon gases, comparing results with lattice and perturbative QCD data.

Contribution

It introduces a broad class of solutions for thermodynamics with temperature-dependent Hamiltonians and applies these to quasi-gluon systems, extending prior work.

Findings

Identified a large class of thermodynamic solutions.

Applied solutions to ideal quasi-gluon gases.

Compared results with lattice and perturbative QCD data.

Abstract

We present in this work a generalization of the solution of Gorenstein and Yang for a consistent thermodynamics for systems with a temperature dependent Hamiltonian. We show that there is a large class of solutions, work out three particular ones, and discuss their physical relevance. We apply the particular solutions for an ideal gas of quasi-gluons, and compare the calculation to lattice and perturbative QCD results.