Holographic superconductors with the general RF2-type couplings

Abstract

We explore the effects of the general non-minimally coupled RF2-type couplings on the holographic s-wave superconductors numerically in the Schwarzschild-anti-de Sitter (AdS) background. We calculate the condensation and conductivity of the model for the coupling parameters ?1 and ß. We obtain that the bigger deviations of the parameter ?1 from the minimal case lead to the larger deviations of the gap frequency from the universal value ?g/Tc ? 8. Moreover, the smaller ß and a1 cause to gradually stronger and narrower coherence peak. © 2016 World Scientific Publishing Company.