Majorana Single-Charge Transistor

R. Huetzen*, A. Zazunov, B. Braunecker, A. Levy Yeyati, R. Egger

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

71 Citations (Scopus)

Abstract

We study transport through a Coulomb blockaded topologically nontrivial superconducting wire (with Majorana end states) contacted by metallic leads. An exact formula for the current through this interacting Majorana single-charge transistor is derived in terms of wire spectral functions. A comprehensive picture follows from three different approaches. We find Coulomb oscillations with universal halving of the finite-temperature peak conductance under strong blockade conditions, where the valley conductance mainly comes from elastic cotunneling. The nonlinear conductance exhibits finite-voltage sidebands due to anomalous tunneling involving Cooper pair splitting.

Original languageEnglish
Article number166403
Number of pages5
JournalPhysical Review Letters
Volume109
Issue number16
DOIs
Publication statusPublished - 16 Oct 2012

Keywords

  • TOPOLOGICAL INSULATORS

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