Dynamical instability of holographic QCD at finite density

被引：14

作者：

Chuang, Wu-Yen ^{[1
,2
]}

Dai, Shou-Huang ^{[3
]}

Kawamoto, Shoichi ^{[3
]}

Lin, Feng-Li ^{[3
]}

Yeh, Chen-Pin ^{[4
]}

机构：

[1] Rutgers State Univ, NHETC, Dept Phys, Piscataway, NJ 08854 USA

[2] Natl Taiwan Univ, Dept Math, Taipei 106, Taiwan

[3] Natl Taiwan Normal Univ, Dept Phys, Taipei 117, Taiwan

[4] Natl Taiwan Univ, Dept Phys, Taipei 106, Taiwan

来源：

PHYSICAL REVIEW D | 2011年 / 83卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.83.106003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper we study the dynamical instability of Sakai-Sugimoto's holographic QCD model at finite baryon density. In this model, the baryon density, represented by the smeared instanton on the world volume of the probe D8-(D8) over bar mesonic brane, sources the world-volume electric field, and through the Chern-Simons term it will induce the instability to form a chiral helical wave at sufficient high density. Our results show that this kind of instability occurs for sufficiently high baryon number densities. The phase diagram of holographic QCD will thus be changed from the one which is based only on thermodynamics.

引用

页数：10

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