Phases of Holographic QCD

被引：0
作者：
Lippert, Matthew [1 ,2 ]
机构：
[1] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel
[2] Univ Haifa, Dept Math & Phys, IL-36000 Oranim, Tivon, Israel
来源：
NUCLEAR PHYSICS A | 2009年 / 827卷 / 1-4期
基金：
以色列科学基金会;
关键词：
gauge/string duality; QCD phase diagram; DENSITY;
D O I：
10.1016/j.nuclphysa.2009.05.080
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We investigated the Sakai-Sugimoto model of large N QCD at nonzero temperature and baryon chemical potential and in the presence of background electric and magnetic fields. We studied the holographic representation of baryons and the deconfinement, chiral-symmetry breaking, and unclear matter phase transitions. In a background electric field, chiral-symmetry breaking corresponds to an insulator-conductor transition. A magnetic field both catalyzes chiral-symmetry breaking and generates, in the confined phase, a pseudo-scalar gradient or, in the deconfined phase, an axial current. The resulting phase diagram is in qualitative agreement with studies of hot, dense QCD.
引用
收藏
页码：371C / 373C
页数：3
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