title: Majorana edge states in interacting one-dimensional systems.
abstract: We show that one-dimensional electron systems in the proximity of a superconductor that support Majorana edge states are extremely susceptible to electron-electron interactions. Strong interactions generically destroy the induced superconducting gap that stabilizes the Majorana edge states. For weak interactions, the renormalization of the gap is nonuniversal and allows for a regime in which the Majorana edge states persist. We present strategies of how this regime can be reached.
authors.affiliation: Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland.
authors.forename: Suhas
authors.initials: S
authors.lastname: Gangadharaiah
authors.forename: Bernd
authors.initials: B
authors.lastname: Braunecker
authors.forename: Pascal
authors.initials: P
authors.lastname: Simon
authors.forename: Daniel
authors.initials: D
authors.lastname: Loss