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题名: D4 brane probes in gauge/gravity duality
作者: Zhou, Yang
刊名: PHYSICAL REVIEW D
出版日期: 2009
卷号: 79, 期号:6, 页码:-
关键词: GAUGE-THEORIES ;  BARYONS ;  QCD
学科分类: Physics
通讯作者: Zhou, Y , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
部门归属: [Zhou, Y] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Zhou, Y] USTC, Interdisciplinary Ctr Theoret Studies, Hefei 230026, Anhui, Peoples R China
英文摘要: We propose a Dirac-Born-Infeld vertex brane+N(c) fundamental strings configuration for a probe baryon in the finite-temperature thermal gauge field via AdS/CFT correspondence. In particular, we investigate properties of this configuration in QCD(4) and warped AdS(6)xS(4). We find that, in the D4-D8 system, a holographic probe baryon can be described as N(c) fundamental strings connecting through a vertex D4 brane wrapped on S(4). In QCD(4) background, a closed vertex can exist in a confined phase but cannot exist in a deconfined phase. In the low temperature region, the screening effect still exists in the confined phase like a meson, and the vertex D4 brane dominates the baryon mass. The lower energy state corresponds to the vertex brane closer to the radial cutoff position (r=r(c)), and the higher energy state corresponds to the vertex brane a little farther away from the cutoff position. The high energy limit of this configuration is just like the unclosed vertex brane configuration in a higher temperature deconfined phase. In warped AdS(6)xS(4) background, a closed vertex can exist in a deconfined phase and the vertex contains a spike, while fundamental strings are relatively short. The screening length should be defined through the distance between the top position of the vertex spike and the boundary.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000264762500127
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5382
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Zhou, Yang. D4 brane probes in gauge/gravity duality[J]. PHYSICAL REVIEW D,2009,79(6):-.
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