Translation-invariant topological superconductors on a lattice
In this paper we introduce four Z2 topological indices zeta k=0,1 at k=(0,0), (0,pi), (pi,0), and (pi,pi) characterizing 16 universal classes of two-dimensional superconducting states that have translation symmetry but may break any other symmetries. The 16 classes of superconducting states are dist...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
American Physical Society,
2011-02-04T21:23:29Z.
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Subjects: | |
Online Access: | Get fulltext |