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arXiv · 2111.03810

Holographic Superconductors in a Non-minimally Coupled Einstein-Maxwell-scalar Model

Yiqian Chen·Xiaobo Guo·Peng Wang
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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 $T_{c}$, and decreases with the increase of the coupling constant $\alpha$. On the other hand, the the critical temperature $T_{c}$ increases as the coupling constant $\alpha$ grows. We also calculate the optical conductivity of the holographic superconductor, and observe that a gap forms below $T_{c}$. Interestingly, the non-minimal coupling can lead to a spike occurring in the gap at a low temperature.

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Yiqian Chen, Xiaobo Guo, Peng Wang. 2021-11-06. Holographic Superconductors in a Non-minimally Coupled Einstein-Maxwell-scalar Model. https://arxiv.org/abs/2111.03810

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