Supercurrents in chiral channels originate from upstream information   transfer: a theoretical prediction
  It has been thought that the long chiral edge channels cannot support any supercurrent between the superconducting electrodes. We show theoretically that the supercurrent can be mediated by a non-local interaction that facilitates a long-distance information transfer in the direction opposite to electron flow. We compute the supercurrent for several interaction models, including that of an external circuit. 
Xiao-Li Huang and Yuli V. Nazarov
cond-mat.mes-hall