%0 Journal Article
%T Probing Majorana fermions in the tunneling spectra of a resonant level
%A Richard Koryt¨¢r
%A Peter Schmitteckert
%J Physics
%D 2013
%I arXiv
%R 10.1088/0953-8984/25/47/475304
%X Unambiguous identification of Majorana physics presents an outstanding problem whose solution could render topological quantum computing feasible. We develop a numerical approach to treat finite-size superconducting chains supporting Majorana fermions, which is based on iterative application of a two-site Bogoliubov transformation. We demonstrate the applicability of the method by studying a resonant level attached to the superconductor subject to external perturbations. In the topological phase, we show that the spectrum of a single resonant level allows to distinguish peak coming from Majorana physics from the Kondo resonance.
%U http://arxiv.org/abs/1307.1308v1