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Ling, Y; Liu, P; Niu, C; Wu, JP; Xian, ZY; Niu, C (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.
Holographic superconductor on Q-lattice
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordGauge-gravity Correspondence Holography And Condensed Matter Physics (Ads/cmt)
AbstractWe 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.
2015
Issue2Pages:59
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1007/JHEP02(2015)059
Indexed BySCI
Funding OrganizationNatural Science Foundation of China [11275208, 11305018, 11178002] ; Natural Science Foundation of China [11275208, 11305018, 11178002] ; Natural Science Foundation of China [11275208, 11305018, 11178002] ; Natural Science Foundation of China [11275208, 11305018, 11178002] ; Jiangxi young scientists (JingGang Star) program ; Jiangxi young scientists (JingGang Star) program ; Jiangxi young scientists (JingGang Star) program ; Jiangxi young scientists (JingGang Star) program ; 555 talent project of Jiangxi Province ; 555 talent project of Jiangxi Province ; 555 talent project of Jiangxi Province ; 555 talent project of Jiangxi Province ; Program for Liaoning Excellent Talents in University [LJQ2014123] ; Program for Liaoning Excellent Talents in University [LJQ2014123] ; Program for Liaoning Excellent Talents in University [LJQ2014123] ; Program for Liaoning Excellent Talents in University [LJQ2014123]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21095
Collection理论物理所科研产出_SCI论文
Corresponding AuthorNiu, C (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.
Recommended Citation
GB/T 7714
Ling, Y,Liu, P,Niu, C,et al. Holographic superconductor on Q-lattice[J]. JOURNAL OF HIGH ENERGY PHYSICS,2015(2):59.
APA Ling, Y,Liu, P,Niu, C,Wu, JP,Xian, ZY,&Niu, C .(2015).Holographic superconductor on Q-lattice.JOURNAL OF HIGH ENERGY PHYSICS(2),59.
MLA Ling, Y,et al."Holographic superconductor on Q-lattice".JOURNAL OF HIGH ENERGY PHYSICS .2(2015):59.
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