Heun's equation and analytic structure of the gap in holographic superconductivity

초록

We present the new method to calculate the critical temperature as a function of A, conformal dimension of the cooper operator. We find that, in the regime 1 /2 <= Delta < 1 where the AC conductivity does not show a gap, the critical temperature is not well defined. We also got expression of AC conductivity for Delta = 2, which agrees with numerical result in the probe approximation.

키워드