Holographic Superconductors in a Non-minimally Coupled Einstein-Maxwell-scalar Model
arXiv:2111.03810
Abstract
In this paper, we investigate holographic superconductors dual to asymptotically anti-de Sitter black holes in an Einstein-Maxwell-scalar model with a non-minimal coupling between the scalar and Maxwell fields. In the probe limit, it shows that the scalar condensate occurs below the critical temperature , and decreases with the increase of the coupling constant . On the other hand, the the critical temperature increases as the coupling constant grows. We also calculate the optical conductivity of the holographic superconductor, and observe that a gap forms below . Interestingly, the non-minimal coupling can lead to a spike occurring in the gap at a low temperature.
arXiv comment11 pages, 5 figures, 1 table
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