Thermodynamics from the quark condensate

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.

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

References in corpus (11)

• The order of the quantum chromodynamics transition predicted by the standard model of particle physics
• The equation of state in (2+1)-flavor QCD
• The QCD transition temperature: results with physical masses in the continuum limit II.
• The QCD Equation of State to $\mathcal{O}({\mu }_B^6)$ from Lattice QCD
• Phase structure of three and four flavor QCD
• Propagators and phase structure of Nf=2 and Nf=2+1 QCD
• Chiral and deconfinement transition from correlation functions: SU(2) vs. SU(3)
• The quark-gluon vertex in Landau gauge bound-state studies
• Baryon number fluctuations at finite temperature and density
• The phase structure of QCD for heavy quarks
• Phase structure and propagators at nonvanishing temperature for QCD and QCD-like theories

Cited by in corpus (1)

• Critical endpoint of QCD in a finite volume