Holographic superconductor on Q-lattice
Ling Y(凌意); 刘鹏(理); Niu C(牛超); Xian ZY(冼卓宇); Ling, Y; Liu, P; Niu, C; Wu, JP; Xian, ZY
刊名JOURNAL OF HIGH ENERGY PHYSICS
2015
卷号2015期号:2页码:59
关键词Gauge-gravity correspondence Holography and condensed matter physics (AdS/CMT)
学科分类Physics
DOI10.1007/JHEP02(2015)059
通讯作者凌意
文章类型Article
英文摘要We construct the simplest gravitational dual model of a superconductor on Q-lattices. We analyze the condition for the existence of a critical temperature at which the charged scalar field will condense. In contrast to the holographic superconductor on ionic lattices, the presence of Q-lattices will suppress the condensate of the scalar field and lower the critical temperature. In particular, when the Q-lattice background is dual to a deep insulating phase, the condensation would never occur for some small charges. Furthermore, we numerically compute the optical conductivity in the superconducting regime. It turns out that the presence of Q-lattice does not remove the pole in the imaginary part of the conductivity, ensuring the appearance of a delta function in the real part. We also evaluate the gap which in general depends on the charge of the scalar field as well as the Q-lattice parameters. Nevertheless, when the charge of the scalar field is relatively large and approaches the probe limit, the gap becomes universal with omega(g) similar or equal to 9T(c) which is consistent with the result for conventional holographic superconductors.
类目[WOS]Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:000349361800001
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被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228096
专题中国科学院高能物理研究所_理论物理室_期刊论文
中国科学院高能物理研究所_理论物理室
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Ling Y,Liu P,Niu C,et al. Holographic superconductor on Q-lattice[J]. JOURNAL OF HIGH ENERGY PHYSICS,2015,2015(2):59.
APA 凌意.,刘鹏.,牛超.,冼卓宇.,Ling, Y.,...&Xian, ZY.(2015).Holographic superconductor on Q-lattice.JOURNAL OF HIGH ENERGY PHYSICS,2015(2),59.
MLA 凌意,et al."Holographic superconductor on Q-lattice".JOURNAL OF HIGH ENERGY PHYSICS 2015.2(2015):59.
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