Chiral symmetry on the edge of two-dimensional symmetry protected topological phases
Symmetry protected topological (SPT) states are short-range entangled states with symmetry. The boundary of a SPT phases has either gapless excitations or degenerate ground states, around a gapped bulk. Recently, we proposed a systematic construction of SPT phases in interacting bosonic systems, how...
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Format: | Article |
Language: | English |
Published: |
American Physical Society,
2014-08-18T14:59:48Z.
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Online Access: | Get fulltext |