Regensburg 2019 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 11: Majorana Physics

TT 11.3: Vortrag

Montag, 1. April 2019, 15:30–15:45, H4

Fano resonaces in spinfull Majorana bound state - quantum dot hybrid system — •Alexander Schuray1 and Patrik Recher1,21Institut für Mathematische Physik, TU Braunschweig — 2Laboratory for Emerging Nanometrology Braunschweig

The emergence of Majorana bound states (MBS) as topologically protected zero energy modes in hybrid superconductor-semiconductor devices spark a lot of research activities in the last couple of years [1]. Recently, it was reported that these hybrid devices can be coupled to a quantum dot [2]. In devices in which MBS are coupled to a quantum dot (QD) on one side and a normal conducting lead on the other side Fano resonances arise. These resonances can be used to identify and quantify the couplings to the MBS [3]. Here, we want to present our recent research in which we extend our previous work on a spinless MBS-QD system [3] to the spinful case including Coulomb interaction on the QD on a mean field level. We use full counting statistics to calculate the transport properties and support our analytical findings by numerical calculations using Kwant [4].
R. Aguado, Riv. Nuovo Cimento 40, 523 (2017)
M.T. Deng et al., Phys. Rev. B 98, 085125 (2018)
A. Schuray, L. Weithofer, and P. Recher, Phys. Rev. B 96, 085417 (2017)
C. W. Groth et al., New J. Phys. 16, 063065 (2014)

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