Equilibrium circular photogalvanic effect in a hybrid   superconductor-semiconductor system
  A dc electric current can be induced in a hybrid semiconductor-superconductor system under illumination it by a circularly polarized light with the frequency below the energy of semiconductor interband transitions. In conditions when the light beam is unable to create real electron-hole excitations, this phenomenon is reminiscent of the Meissner effect in the static magnetic field. Such an effect can be employed in systems combining cavity photons and superconducting quantum circuits. 
A.G. Mal'shukov
cond-mat.supr-con cond-mat.mes-hall