Analytic study on chiral phase transition in holographic QCD

Meng-Wei Li, Yi Yang, Pei-Hung Yuan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The chiral symmetry breaking (chi sb) is one of the most fundamental problems in QCD. In this paper, we calculate quark condensation analytically in a holographic QCD model dual to the Einstein-Maxwell-Dilaton (EMD) system coupled to a probe scalar field. We find that the black hole phase transition in the EMD system seriously affects chi sb. At small chemical potential, chi sb behaves as a crossover. For large chemical potential mu > mu (c), chi sb becomes first order with exactly the same transition temperature as the black hole phase transition by a bypass mechanism. The phase diagram we obtained is qualitatively consistent with the recent results from lattice QCD simulations and NJL models.

Original languageEnglish
Article number55
Pages (from-to)1-22
Number of pages22
JournalJournal of High Energy Physics
Issue number2
DOIs
StatePublished - 5 Feb 2021

Keywords

  • AdS-CFT Correspondence
  • Duality in Gauge Field Theories
  • Phase Diagram of QCD

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