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arXiv · 1307.1308

Probing Majorana fermions in the tunneling spectra of a resonant level

Richard Korytár·Peter Schmitteckert
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Abstract

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.

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Richard Korytár, Peter Schmitteckert. 2013-07-04. Probing Majorana fermions in the tunneling spectra of a resonant level. https://doi.org/10.1088/0953-8984%2F25%2F47%2F475304

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