Pseudogap and time reversal breaking in a holographic superconductor

Matthew M Roberts, Sean A Hartnoll
2008 Journal of High Energy Physics  
Classical SU(2) Yang-Mills theory in 3+1 dimensional anti-de Sitter space is known to provide a holographic dual to a 2+1 system that undergoes a superconducting phase transition. We study the electrical conductivity and spectral density of an isotropic superconducting phase. We show that the theory exhibits a pseudogap at low temperatures and a nonzero Hall conductivity. The Hall conductivity is possible because of spontaneous breaking of time reversal symmetry.
doi:10.1088/1126-6708/2008/08/035 fatcat:53545fax25d4lnucelpx43uyga