Counting Majorana zero modes in superconductors
Superconductivity
2015-03-17 v2 High Energy Physics - Theory
Abstract
A counting formula for computing the number of (Majorana) zero modes bound to topological point defects is evaluated in a gradient expansion for systems with charge-conjugation symmetry. This semi-classical counting of zero modes is applied to some examples that include graphene and a chiral p-wave superconductor in two-dimensional space. In all cases, we explicitly relate the counting of zero modes to Chern numbers.
Keywords
Cite
@article{arxiv.1011.1007,
title = {Counting Majorana zero modes in superconductors},
author = {Luiz Santos and Yusuke Nishida and Claudio Chamon and Christopher Mudry},
journal= {arXiv preprint arXiv:1011.1007},
year = {2015}
}
Comments
21 pages, 3 figures