Majorana Edge States in Interacting One-Dimensional Systems

Suhas Gangadharaiah, Bernd Braunecker, Pascal Simon, and Daniel Loss
Phys. Rev. Lett. 107, 036801 – Published 11 July 2011

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.

  • Figure
  • Received 31 December 2010

DOI:https://doi.org/10.1103/PhysRevLett.107.036801

© 2011 American Physical Society

Authors & Affiliations

Suhas Gangadharaiah1, Bernd Braunecker1, Pascal Simon2, and Daniel Loss1

  • 1Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
  • 2Laboratoire de Physique des Solides, CNRS UMR-8502, Univ. Paris Sud, 91405 Orsay Cedex, France

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Issue

Vol. 107, Iss. 3 — 15 July 2011

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