The Phase Diagram of QC2D from Functional Methods

TL;DR

This paper investigates the phase diagram of two-color QCD at finite temperature and chemical potential using functional renormalisation group methods, revealing phenomena like pre-condensation and discussing the Silver Blaze property.

Contribution

It introduces a low-energy effective model incorporating quantum, thermal, and density fluctuations to analyze the phase structure of QC2D.

Findings

Identification of pre-condensation affecting phase boundaries

Analysis of the Silver Blaze property within the FRG framework

Mapping of the phase diagram with fluctuation effects

Abstract

We study the phase diagram of two-color Quantum Chromodynamics at finite temperature and chemical potential. This is done within an effective low-energy description in terms of quarks, mesons and diquarks. Quantum, thermal and density fluctuations are taken into account with the functional renormalisation group approach. In particular, we establish the phenomenon of pre-condensation, affecting the location of the phase boundary to Bose-Einstein condensation. We also discuss the Silver Blaze property in the context of the functional renormalisation group.