Nonlocal supercurrent of quartets in a three-terminal Josephson junction
Nonlocal supercurrent of quartets in a three-terminal Josephson junction
Significance In this work we present detailed studies of a nondissipative current, called “quartet supercurrent,” where two distinct Cooper pairs, originating in different terminals, recombine into a four-electron quasiparticle: a quartet. Employing conductance measurements and highly sensitive cross-correlation of current fluctuation, we identified the existence of such a coherent nonlocal …