Tunneling between Two Helical Superconductors via Majorana Edge Channels
Superconductivity
2010-08-05 v1
Abstract
We discuss electric transport through a point contact which bridges Majorana fermion modes appearing at edges of two helical superconductors. The contents focus on effects of interference and interaction unique to the Majorana fermions and role of spin-orbit interaction (SOI). Besides the Josephson current, the quasi-particle conductance depends sensitively on phase difference and relative helicity between the two superconductors. The interaction among the Majorana fermions causes the power-law temperature dependences of conductance for various tunneling channels. Especially, in the presence of SOI, the conductance always increases as the temperature is lowered.
Cite
@article{arxiv.1004.4092,
title = {Tunneling between Two Helical Superconductors via Majorana Edge Channels},
author = {Yasuhiro Asano and Yukio Tanaka and Naoto Nagaosa},
journal= {arXiv preprint arXiv:1004.4092},
year = {2010}
}
Comments
5pages, 1 figure embedded