Coupled wire model of symmetric Majorana surfaces of topological superconductors

Article

关键词: GROUND-STATE DEGENERACY;    GROUP-LEVEL DUALITY;    THERMAL TRANSPORT;    FIELD-THEORY;    2 DIMENSIONS;    S-MATRIX;    QUANTUM;    CLASSIFICATION;    INSULATORS;    BREAKING;   

DOI  :  10.1103/PhysRevB.94.165142

来源: SCIE

【 摘 要 】

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.

【 授权许可】

Free