Regensburg 2019 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 11: Majorana Physics

TT 11.9: Vortrag

Montag, 1. April 2019, 17:30–17:45, H4

Time-resolved Majorana-fermion dynamics in topological superconducting wires — •Riku Tuovinen1, Michael A. Sentef1, Robert van Leeuwen2, Enrico Perfetto3, and Gianluca Stefanucci31Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany — 2Department of Physics, University of Jyväskylä, 40014 Jyväskylä, Finland — 3Dipartimento di Fisica, Università di Roma Tor Vergata, 00133 Rome, Italy

In the emerging field of topological quantum computing, topologically protected states can be utilized to minimize quantum decoherence [1]. We use a recently developed method for time-dependent quantum transport [2], and we consider a superconducting wire - hosting a Majorana zero mode at its edges [3] - connected to metallic leads. We investigate how the Majorana zero mode builds up in the transient regime [4], and we discuss how these ultrafast transport properties could also be observed experimentally.
X.-L. Qi and S.-C. Zhang, Rev. Mod. Phys. 83, 1057 (2011)
R. Tuovinen, E. Perfetto, G. Stefanucci, and R. van Leeuwen, Phys. Rev. B 89, 085131 (2014)
E. M. Stoudenmire, J. Alicea, O. A. Starykh, and M. P. A. Fisher, Phys. Rev. B 84, 014503 (2011)
R. Tuovinen, M. A. Sentef, R. van Leeuwen, E. Perfetto, and G. Stefanucci, in preparation

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