Current through a hybrid four-terminal Josephson junction with Majorana nanowires.

We investigate the current through a hybrid four-terminal Josephson junction with semiconductor nanowires, in which the junction is connected with two superconducting electrodes and two normal electrodes. The semiconductor nanowire, which is subject to an external magnetic field with Rashba spin-orbit coupling and proximity-induced superconductivity, can host Majorana bound states. When all the nanowires lie in topological nontrivial region, a 4-periodic current can be observed through the normal terminal and a 2-periodic current through the superconducting terminal.