Quark Number Susceptibility with Finite Quark Mass in Holographic QCD
文献类型：期刊论文
| 作者 | Kim, KI ; Kim, Y ; Takeuchi, S ; Tsukioka, T |
| 刊名 | PROGRESS OF THEORETICAL PHYSICS
 |
| 出版日期 | 2011 |
| 卷号 | 126期号:4页码:735-751 |
| 关键词 | CRITICAL-POINT PHASE-DIAGRAM GAUGE-THEORY THERMODYNAMICS LATTICE FLUCTUATIONS ADS/CFT |
| ISSN号 | 0033-068X |
| 通讯作者 | Kim, KI (reprint author), Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea. |
| 英文摘要 | We 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. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | Max Planck Society; Korea Ministry of Education, Science and Technology (MEST); Korea Research Foundation [KRF-2006-C00011]; Korean BK21 Program |
| 原文出处 | http://ptp.oxfordjournals.org/content/126/4/735.short |
| 语种 | 英语 |
| WOS记录号 | WOS:000297432500008 |
| 公开日期 | 2013-05-17 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/14260]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 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.(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. |
入库方式： OAI收割
来源：理论物理研究所
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