Date of this Version
We study the proximity effect between an s-wave superconductor and the surface states of a strong topological insulator. The resulting two-dimensional state resembles a spinless px + ipy superconductor, but does not break time reversal symmetry. This state supports Majorana bound states at vortices. We show that linear junctions between superconductors mediated by the topological insulator form a nonchiral one-dimensional wire for Majorana fermions, and that circuits formed from these junctions provide a method for creating, manipulating, and fusing Majorana bound states.
Fu, L., & Kane, C. L. (2008). Superconducting Proximity Effect and Majorana Fermions at the Surface of a Topological Insulator. Retrieved from http://repository.upenn.edu/physics_papers/99
Date Posted: 25 January 2011
This document has been peer reviewed.