Functional renormalization group approach to color superconducting phase transition

Gergely Fejős, Naoki Yamamoto

Research output: Contribution to journalArticle

Abstract

We investigate the order of the color superconducting phase transition using the functional renormalization group approach. We analyze the Ginzburg-Landau effective theory of color superconductivity and more generic scalar SU(Nc) gauge theories by calculating the β function of the gauge coupling in arbitrary dimension d based on two different regularization schemes. We find that in d = 3, due to gluon fluctuation effects, the β function never admits an infrared fixed point solution. This indicates that, unlike the ordinary superconducting transition, color superconductivity can only show a first-order phase transition.

Original languageEnglish
Article number69
JournalJournal of High Energy Physics
Volume2019
Issue number12
DOIs
Publication statusPublished - 2019 Dec 1

    Fingerprint

Keywords

  • Gauge Symmetry
  • Phase Diagram of QCD
  • Renormalization Group

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this