QCD's equation of state from Dyson-Schwinger equations

TL;DR

This paper introduces a truncation-independent method to compute the QCD equation of state using Dyson-Schwinger equations, providing insights into the thermodynamics of strong-interaction matter across its phase diagram.

Contribution

It presents a novel, truncation-independent approach for calculating the QCD equation of state within nonperturbative functional methods, applied to Dyson-Schwinger equations.

Findings

Validated the method's viability for QCD thermodynamics

Computed thermodynamic quantities across the phase diagram

Provided insights into the behavior of quark and gluon propagators

Abstract

In this contribution, we summarize a truncation-independent method to compute the equation of state within nonperturbative functional approaches. After demonstrating its viability, the method is applied to solutions obtained from a set of truncated Dyson-Schwinger equations for the quark and gluon propagators of (2+1)-flavor QCD to obtain thermodynamic quantities across the phase diagram of strong-interaction matter.