SKM 2023 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 31: Topology: Majorana Physics
TT 31.2: Vortrag
Mittwoch, 29. März 2023, 09:45–10:00, HSZ 304
Statistical Majorana bound state spectroscopy — •Alexander Ziesen1, Alexander Altland2, Reinhold Egger3, and Fabian Hassler1 — 1JARA Institute for Quantum Information, RWTH Aachen University, Aachen, Germany — 2Institut für Theoretische Physik, Universität zu Köln, Köln, Germany — 3Institut für Theoretische Physik, Heinrich-Heine-Universität, Düsseldorf, Germany
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.