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Coupled wire model of symmetric Majorana surfaces of topological superconductors

Sharmistha Sahoo, Zhao Zhang, and Jeffrey C. Y. Teo
Phys. Rev. B 94, 165142 – Published 19 October 2016

Abstract

Time-reversal-symmetric topological superconductors in three spatial dimensions carry gapless surface Majorana fermions. They are robust against any time-reversal-symmetric single-body perturbation weaker than the bulk energy gap. We mimic the massless surface Majoranas by coupled wire models in two spatial dimensions. We introduce explicit many-body interwire interactions that preserve time-reversal symmetry and give energy gaps to all low-energy degrees of freedom. We show the gapped models generically carry nontrivial topological order and support anyonic excitations.

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  • Received 15 July 2016
  • Revised 28 September 2016

DOI:https://doi.org/10.1103/PhysRevB.94.165142

©2016 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Sharmistha Sahoo, Zhao Zhang, and Jeffrey C. Y. Teo*

  • Department of Physics, University of Virginia, Virginia 22904, USA

  • *jteo@virginia.edu

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Issue

Vol. 94, Iss. 16 — 15 October 2016

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