Holographic superconductor in hyperscaling violation geometry with Maxwell-dilaton coupling
Holographic superconductor in hyperscaling violation geometry with Maxwell-dilaton coupling
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发表时间：
2015-11
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通讯作者：
Shao-Jun Zhang;Qiyuan Pan;E. Abdalla
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作者：
Shao-Jun Zhang;Qiyuan Pan;E. Abdalla
通过考虑被探测麦克斯韦尔场与背景伸缩子之间的耦合，我们重新研究了超标度破坏几何中的全息超导体。我们发现超导现象仍然存在，但其性质受到这种耦合的影响。临界温度随超标度破坏指数的增加而降低。动力学指数对临界温度的影响变得复杂，这取决于被探测标量场的质量和超标度破坏指数。频隙的结果表明，与预期的普遍关系有很大的偏差。
We re-investigate the holographic superconductor in hyperscaling violation geometry by considering the coupling between the probed Maxwell field and the background dilaton. We find that the phenomenon of superconductivity still exists, but with properties affected by such a coupling. The critical temperature decreases as the hyperscaling violation exponent is increased. The influence of the dynamical exponent on the critical temperature becomes complicated which depends on the mass of the probed scalar field and the hyperscaling violation exponent. The results of the frequency gap show a large deviation from the expected universal relation.