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题名: Spectral function and quark diffusion constant in non-critical holographic QCD
作者: Bu, YY ;  Yang, JM
刊名: NUCLEAR PHYSICS B
出版日期: 2012
卷号: 855, 期号:2, 页码:388-419
关键词: GAUGE-STRING DUALITY ;  FIELD-THEORY ;  YANG-MILLS ;  SUPERSTRINGS ;  BRANES ;  MODEL
学科分类: Physics
通讯作者: Bu, YY (reprint author), Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China.
部门归属: [Bu, Yan Yan; Yang, Jin Min] Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: Motivated by recent studies of intersecting D-brane systems in critical string theory and phenomenological AdS/QCD models, we present a detailed analysis for the vector and scalar fluctuations in a non-critical holographic QCD model in the high temperature phase, i.e., the chiral symmetric phase. This model is described by N-f pairs of D4 and (D4) over bar probe branes in a non-critical AdS(6) black hole background. Focusing on the hydrodynamic as well as the high frequency limit, we analytically obtain spectral functions for vector and scalar modes on the flavor probe. Then we extract the light quark diffusion constant for flavor current using three different methods and find that different methods give the same results. We also compute the heavy quark diffusion constant for comparison with the light quark case. (C) 2011 Elsevier B.V. All rights reserved.
资助者: JSPS [S-11028]; NSFC [10821504, 10725526]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000297783000009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15161
Appears in Collections:理论物理所2012年知识产出_期刊论文

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Recommended Citation:
Bu, YY,Yang, JM. Spectral function and quark diffusion constant in non-critical holographic QCD[J]. NUCLEAR PHYSICS B,2012,855(2):388-419.
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