Majorana single-charge transistor
Mesoscale and Nanoscale Physics
2015-06-05 v2
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.
Cite
@article{arxiv.1206.3912,
title = {Majorana single-charge transistor},
author = {R. Hützen and A. Zazunov and B. Braunecker and A. Levy Yeyati and R. Egger},
journal= {arXiv preprint arXiv:1206.3912},
year = {2015}
}
Comments
6 pages, 5 figures, published version