English

Thermodynamics from the quark condensate

High Energy Physics - Phenomenology 2021-03-15 v2

Abstract

We present a method to compute thermodynamic quantities within functional continuum frameworks that is independent of the employed truncation. As a proof of principle, we first apply it to a Nambu-Jona-Lasinio model in mean-field approximation. Then, we use the method with solutions obtained from a coupled set of truncated Dyson-Schwinger equations for the quark and gluon propagators of (2+1)-flavor quantum chromodynamics in Landau gauge to obtain the pressure, entropy density, energy density, and interaction measure across the phase diagram of strong-interaction matter. We also discuss the limitation of the proposed method.

Keywords

Cite

@article{arxiv.2012.04991,
  title  = {Thermodynamics from the quark condensate},
  author = {Philipp Isserstedt and Christian S. Fischer and Thorsten Steinert},
  journal= {arXiv preprint arXiv:2012.04991},
  year   = {2021}
}

Comments

9 pages, 7 figures; v2: minor changes, version published in PRD

R2 v1 2026-06-23T20:50:31.210Z