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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Bibliographic Details
Main Authors: Chen, Xie, Wen, Xiao-Gang
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Physical Society 2014
Online Access:http://hdl.handle.net/1721.1/88750
https://orcid.org/0000-0002-5874-581X

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