  We study the fermionic spectral function in a holographic superconductor
model. At zero temperature, the black hole has zero horizon and hence the
entropy of the system is zero after the back reaction of the condensate is
taken into account. We find the system exhibits the famous peak-dip-hump
lineshape with a sharp low-energy peak followed by a dip then a hump at higher
energies. This feature is widely observed in the spectrum of several high-T_c
superconductors. We also find a linear relation between the gap in the
fermionic spectrum and the condensate, indicating the condensate is formed by
fermion pairing.
