The baryonic phase in holographic descriptions of the QCD phase diagram
- Authors
- Evans, Nick; Kim, Keun-Young; Magou, Maria; Seo, Yunseok; Sin, Sang-Jin
- Issue Date
- Sep-2012
- Publisher
- SPRINGER
- Keywords
- Gauge-gravity correspondence; AdS-CFT Correspondence
- Citation
- JOURNAL OF HIGH ENERGY PHYSICS, no.9
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF HIGH ENERGY PHYSICS
- Number
- 9
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/144716
- DOI
- 10.1007/JHEP09(2012)045
- ISSN
- 1126-6708
- 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 (q) over barq 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.
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