2015/09/23 by Sharmistha Sahoo, Zhao Zhang, Jeffrey C. Y. Teo · 1 citation
Physics and Astronomy · #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.94.165142
published as Phys. Rev. B 94, 165142 (2016) · 31 pages, 8 figures
arxiv created 2015/09/23 · arxiv updated 2016/10/26
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 Majorana's 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 non-trivial topological order and support anyonic excitations.