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Kim, KI; Kim, Y; Takeuchi, S; Tsukioka, T; Kim, KI (reprint author), Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea.
Quark Number Susceptibility with Finite Quark Mass in Holographic QCD
Source PublicationPROGRESS OF THEORETICAL PHYSICS
Language英语
KeywordCritical-point Phase-diagram Gauge-theory Thermodynamics Lattice Fluctuations Ads/cft
AbstractWe study the effect of a finite quark mass on the quark number susceptibility in the framework of holographic QCD. We work in a bottom-up model with a deformed AdS black hole and D3/D7 model to calculate the quark number susceptibility at finite temperature with/without a finite quark chemical potential. As expected the finite quark mass suppresses the quark number susceptibility. We find that at high temperatures T >= 600 MeV the quark number susceptibility of light quarks and heavy quarks are almost equal in the bottom-up model. This indicates that the heavy quark like charm contribution to thermodynamics of a QCD-like system may start to become significant at temperatures T similar to 600 MeV. In D3/D7 model, we focus on the competition between the quark chemical potential, which enhances the quark number susceptibility, and the quark mass that suppresses the susceptibility. We observe that depending on the relative values of the quark mass and the quark chemical potential, the quark number susceptibility shows a diverging or converging behavior. We also calculate the chiral susceptibility in D3/D7 model to support the observation made with the quark number susceptibility.
2011
ISSN0033-068X
Volume126Issue:4Pages:735-751
Subject AreaPhysics
Indexed BySCI
Funding OrganizationMax Planck Society; Korea Ministry of Education, Science and Technology (MEST); Korea Research Foundation [KRF-2006-C00011]; Korean BK21 Program ; Max Planck Society; Korea Ministry of Education, Science and Technology (MEST); Korea Research Foundation [KRF-2006-C00011]; Korean BK21 Program ; Max Planck Society; Korea Ministry of Education, Science and Technology (MEST); Korea Research Foundation [KRF-2006-C00011]; Korean BK21 Program ; Max Planck Society; Korea Ministry of Education, Science and Technology (MEST); Korea Research Foundation [KRF-2006-C00011]; Korean BK21 Program
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14260
Collection理论物理所科研产出_SCI论文
Corresponding AuthorKim, KI (reprint author), Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea.
Recommended Citation
GB/T 7714
Kim, KI,Kim, Y,Takeuchi, S,et al. Quark Number Susceptibility with Finite Quark Mass in Holographic QCD[J]. PROGRESS OF THEORETICAL PHYSICS,2011,126(4):735-751.
APA Kim, KI,Kim, Y,Takeuchi, S,Tsukioka, T,&Kim, KI .(2011).Quark Number Susceptibility with Finite Quark Mass in Holographic QCD.PROGRESS OF THEORETICAL PHYSICS,126(4),735-751.
MLA Kim, KI,et al."Quark Number Susceptibility with Finite Quark Mass in Holographic QCD".PROGRESS OF THEORETICAL PHYSICS 126.4(2011):735-751.
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