Thermodynamics from the quark condensate
Philipp Isserstedt, Christian S. Fischer, T. Steinert
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.
Topics & Concepts
PhysicsPropagatorQuantum chromodynamicsQuarkEntropy (arrow of time)Phase diagramStrange matterGluonMean field theoryQuark–gluon plasmaQuantum electrodynamicsMathematical physicsThermodynamicsQuantum mechanicsPhase (matter)High-Energy Particle Collisions ResearchQuantum Chromodynamics and Particle InteractionsPulsars and Gravitational Waves Research