Statistical Majorana Bound State Spectroscopy
Alexander Ziesen1, Alexander Altland2, Reinhold Egger3
1JARA Institute for Quantum Information, RWTH Aachen University, 52056 Aachen, Germany.
Abstract:
Tunnel spectroscopy data for the detection of Majorana bound states (MBS) is often criticized for its proneness to misinterpretation of genuine MBS with low-lying Andreev bound states. Here, we suggest a protocol removing this ambiguity by extending single shot measurements to sequences performed at varying system parameters. We demonstrate how such sampling, which we argue requires only moderate effort for current experimental platforms, resolves the statistics of Andreev side lobes, thus providing compelling evidence for the presence or absence of a Majorana center peak.
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