Spectral function and quark diffusion constant in non-critical holographic QCD

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	Spectral function and quark diffusion constant in non-critical holographic QCD
	Yang, JM
刊名	NUCLEAR PHYSICS B
	2012
卷号	855 期号:2 页码:388-419
关键词	GAUGE-STRING DUALITY FIELD-THEORY YANG-MILLS SUPERSTRINGS BRANES MODEL
ISSN号	0550-3213
通讯作者	Bu, YY (reprint author), 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.
学科主题	Physics
收录类别	SCI
资助信息	JSPS [S-11028]; NSFC [10821504, 10725526]
原文出处	http://dx.doi.org/10.1016/j.nuclphysb.2011.10.023
语种	英语
WOS记录号	WOS:000297783000009
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15161]
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	Yang, JM. Spectral function and quark diffusion constant in non-critical holographic QCD[J]. NUCLEAR PHYSICS B,2012,855(2):388-419.
APA	Yang, JM.(2012).Spectral function and quark diffusion constant in non-critical holographic QCD.NUCLEAR PHYSICS B,855(2),388-419.
MLA	Yang, JM."Spectral function and quark diffusion constant in non-critical holographic QCD".NUCLEAR PHYSICS B 855.2(2012):388-419.