Josephson effect in multiterminal topological junctions

Topological Josephson φ0 junctions

Nonequilibrium Josephson current in ballistic multiterminal SNS-junctions

We study the nonequilibrium Josephson current in a long two-dimensional ballistic SNS-junction with a normal reservoir coupled to the normal part of the junction. The current for a given superconducting phase difference φ oscillates as a function of voltage applied between the normal reservoir and the SNS-junction. The period of the oscillations is πh̄vF /L, with L the length of the junction, an...

Signatures of topological Josephson junctions

Yang Peng,1 Falko Pientka,1,2 Erez Berg,3 Yuval Oreg,3 and Felix von Oppen1 1Dahlem Center for Complex Quantum Systems and Fachbereich Physik, Freie Universität Berlin, 14195 Berlin, Germany 2Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA 3Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot, Israel (Received 3 May 2016; revised manuscri...

4p-periodic Josephson supercurrent in HgTe-based topological Josephson junctions

The Josephson effect describes the generic appearance of a supercurrent in a weak link between two superconductors. Its exact physical nature deeply influences the properties of the supercurrent. In recent years, considerable efforts have focused on the coupling of superconductors to the surface states of a three-dimensional topological insulator. In such a material, an unconventional induced p...

4π-periodic Josephson supercurrent in HgTe-based topological Josephson junctions

The Josephson effect describes the generic appearance of a supercurrent in a weak link between two superconductors. Its exact physical nature deeply influences the properties of the supercurrent. In recent years, considerable efforts have focused on the coupling of superconductors to the surface states of a three-dimensional topological insulator. In such a material, an unconventional induced p...