Special CPM Seminar

Josephson-Majorana cycle in topological single-electron hybrid transistors

Nicolas Didier

Scuola Normale Superiore, Pisa

Charge transport through a small topological superconducting island in contact with a normal and a superconducting electrode occurs through a cycle which involves coherent oscillations of Cooper pairs and tunneling in/out the normal electrode through a Majorana bound state, the Josephson-Majorana cycle. We illustrate this mechanism by studying the current-voltage characteristics of two-terminal superconductor-topological superconductor-normal metal single-electron transistors. At low bias and temperature the Josephson-Majorana cycle is the dominant mechanism for transport.