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.
1 More- Received 15 July 2016
- Revised 28 September 2016
DOI:https://doi.org/10.1103/PhysRevB.94.165142
©2016 American Physical Society