https://doi.org/10.1140/epjst/e2018-800101-0
Regular Article
Finite length effect on supercurrents between trivial and topological superconductors
Department of Physics and Astronomy, Uppsala University,
Box 516,
751 20 Uppsala, Sweden
a e-mail: jorge.cayao@physics.uu.se
Received:
8
June
2018
Received in final form:
29
June
2018
Published online: 15 October 2018
We numerically analyze the effect of finite length of the superconducting regions on the low-energy spectrum, current-phase curves, and critical currents in junctions between trivial and topological superconductors. Such junctions are assumed to arise in nanowires with strong spin-orbit coupling under external magnetic fields and proximity-induced superconductivity. We show that all these quantities exhibit a strong dependence on the length of the topological sector in the topological phase and serve as indicators of the topological phase and thus the emergence of Majorana bound states at the end of the topological superconductor.
© The Author(s) 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
