Josephson current via an isolated Majorana zero mode

We study the equilibrium dc Josephson current in a junction between an $s$-wave and topological superconductor. Cooper pairs from superconducting lead can transfer to side either via unpaired Majorana zero mode localized near or above-gap continuum states. find that contribution supercurrent be switched on when time-reversal symmetry conventional is broken, e.g., by externally applied magnetic field inducing Zeeman splitting. Moreover, if has component direction of effective spin-orbit field, there will Majorana-induced anomalous at phase difference. These behaviors may serve as signature characteristic modes are accessible devices with only contacts.