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Journal of High Energy Physics

, 2012:45 | Cite as

The baryonic phase in holographic descriptions of the QCD phase diagram

  • Nick Evans
  • Keun-Young Kim
  • Maria Magou
  • Yunseok Seo
  • Sang-Jin Sin
Article

Abstract

We study holographic models of the QCD temperature-chemical potential phase diagram based on the D3/D7 system with chiral symmetry breaking. The baryonic phase may be included through linked D5-D7 systems. In a previous analysis of a model with a running gauge coupling a baryonic phase was shown to exist to arbitrarily large chemical potential. Here we explore this phase in a more generic phenomenological setting with a step function dilaton profile. The change in dilaton generates a linear confining qq potential and opposes the screening effect of temperature. We show that the persistence of the baryonic phase depends on the step size and that QCD-like phase diagrams can be described. The baryonic phase’s existence is qualitatively linked to the existence of confinement in Wilson loop computations in the background.

Keywords

Gauge-gravity correspondence AdS-CFT Correspondence 

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Copyright information

© SISSA, Trieste, Italy 2012

Authors and Affiliations

  • Nick Evans
    • 1
  • Keun-Young Kim
    • 1
    • 2
  • Maria Magou
    • 1
  • Yunseok Seo
    • 3
  • Sang-Jin Sin
    • 3
  1. 1.School of Physics and AstronomyUniversity of SouthamptonSouthamptonU.K.
  2. 2.Institute for Theoretical Physics University of AmsterdamAmsterdamThe Netherlands
  3. 3.Department of PhysicsHanyang UniversitySeoulKorea

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