Holographic superconductor on a novel insulator

被引:13
|
作者
Lin, Yi [1 ]
Liu, Peng [2 ]
Wu, Jian-Pin [3 ]
Wu, Meng-He [1 ,4 ]
机构
[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
[2] Jinan Univ, Dept Phys, Guangzhou 510632, Guangdong, Peoples R China
[3] Bohai Univ, Inst Gravitat & Cosmol, Sch Math & Phys, Dept Phys, Jinzhou 121013, Peoples R China
[4] Nanchang Univ, Sch Sci, Dept Phys, Ctr Relativist Astrophys & High Energy Phys, Nanchang 330031, Jiangxi, Peoples R China
关键词
gauge/gravity duality; holographic gravity; holographic superconductor; FIELD-THEORIES;
D O I
10.1088/1674-1137/42/1/013106
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 construct a holographic superconductor model, based on a gravity theory, which exhibits novel metal-insulator transitions. We investigate the condition for the condensation of the scalar field over the parameter space, and then focus on the superconductivity over the insulating phase with a hard gap, which is supposed to be Mott-like. It turns out that the formation of the hard gap in the insulating phase benefits the superconductivity. This phenomenon is analogous to the fact that the pseudogap phase can promote the pre-pairing of electrons in high T cuprates. We expect that this work can shed light on understanding the mechanism of high T, superconductivity from the holographic side.
引用
收藏
页数:8
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