Surface Spectral Function of Momentum-dependent Pairing Potentials in a Topological Insulator: Application to Cu${}_x$Bi${}_2$Se${}_3$

Liang Chen, Shaolong Wan

We propose three possible momentum-dependent pairing potentials for candidate of topological superconductor (for example Cu${}_x$Bi${}_2$Se${}_3$), and calculate the surface spectral fun…