The photon absorption edge in superconductors and gapped 1D systems

V. V. Mkhitaryan, E. G. Mishchenko, M. E. Raikh +1

Opening of a gap in the low-energy excitations spectrum affects the power-law singularity in the photon absorption spectrum $A(\Omega )$. In the normal state, the singularity, $A(Ω)\prop…