Majorana Zero Modes Protected by Hopf Invariant in Topologically Trivial Superconductors
Superconductivity
2017-04-07 v3 Mesoscale and Nanoscale Physics
Quantum Gases
Strongly Correlated Electrons
Quantum Physics
Abstract
Majorana zero modes are usually attributed to topological superconductors. We study a class of two-dimensional topologically trivial superconductors without chiral edge modes, which nevertheless host robust Majorana zero modes in topological defects. The construction of this minimal single-band model is facilitated by the Hopf map and the Hopf invariant. This work will stimulate investigations of Majorana zero modes in superconductors in the topologically trivial regime.
Keywords
Cite
@article{arxiv.1701.02558,
title = {Majorana Zero Modes Protected by Hopf Invariant in Topologically Trivial Superconductors},
author = {Zhongbo Yan and Ren Bi and Zhong Wang},
journal= {arXiv preprint arXiv:1701.02558},
year = {2017}
}
Comments
15 pages, 6 figures, including supplemental material. The published version is slightly shortened