Classification of symmetry-protected phases for interacting fermions in two dimensions

Recently, it has been established that two-dimensional bosonic symmetry-protected topological (SPT) phases with on-site unitary symmetry G can be completely classified by the group cohomology H[superscript 3](G,U(1)). Later, group supercohomology was proposed as a partial classification for SPT phas...

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Bibliographic Details
Main Authors: Cheng, Meng, Bi, Zhen, You, Yi-Zhuang, Gu, Zheng-Cheng
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:English
Published: American Physical Society 2018
Online Access:http://hdl.handle.net/1721.1/115315