title: Unconventional Josephson signatures of Majorana bound states.
abstract: A junction between two topological superconductors containing a pair of Majorana fermions exhibits a "fractional" Josephson effect, 4π periodic in the superconductors' phase difference. An additional fractional Josephson effect, however, arises when the Majorana fermions are spatially separated by a superconducting barrier. This new term gives rise to a set of Shapiro steps which are essentially absent without Majorana modes and therefore provides a unique signature for these exotic states.
authors.affiliation: Department of Physics, California Institute of Technology, Pasadena, California 91125, USA.
authors.forename: Liang
authors.initials: L
authors.lastname: Jiang
authors.forename: David
authors.initials: D
authors.lastname: Pekker
authors.forename: Jason
authors.initials: J
authors.lastname: Alicea
authors.forename: Gil
authors.initials: G
authors.lastname: Refael
authors.forename: Yuval
authors.initials: Y
authors.lastname: Oreg
authors.forename: Felix
authors.initials: F
authors.lastname: von Oppen