Thermodynamics of system with density- and/or temperature-dependent mass particles

TL;DR

This paper investigates the thermodynamics of systems with particles whose masses depend on density and temperature, proposing a new equilibrium-based approach and comparing it with previous models.

Contribution

It introduces a novel thermodynamical framework for medium-dependent particle masses and addresses discrepancies in existing models using the quark mass density- and temperature-dependent approach.

Findings

The new treatment aligns better with physical expectations.

Discrepancies in previous models are clarified.

The approach provides a consistent thermodynamic description.

Abstract

The thermodynamics with medium effects expressed by the dispersion relation of the temperature and density dependent particle mass is studied. Many previous treatments have been reviewed. A new thermodynamical treatment based on the equilibrium state is suggested. Employing the quark mass density- and temperature-dependent model, the discrepancies between our treatment and others are addressed.