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Xiao-Gang Wen
Researcher at Massachusetts Institute of Technology
Publications - 17
Citations - 1696
Xiao-Gang Wen is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: Group cohomology & Symmetry group. The author has an hindex of 14, co-authored 17 publications receiving 1527 citations. Previous affiliations of Xiao-Gang Wen include Perimeter Institute for Theoretical Physics & Tsinghua University.
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Symmetry-Protected Topological Orders in Interacting Bosonic Systems
Xie Chen,Xie Chen,Zheng-Cheng Gu,Zheng-Xin Liu,Zheng-Xin Liu,Xiao-Gang Wen,Xiao-Gang Wen,Xiao-Gang Wen +7 more
TL;DR: Just as group theory allows us to construct 230 crystal structures in three-dimensional space, group cohomology theory is used to systematically construct different interacting bosonic SPT phases in any dimension and with any symmetry, leading to the discovery of bosonic topological insulators and superconductors.
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Complete classification of one-dimensional gapped quantum phases in interacting spin systems
TL;DR: Chen et al. as discussed by the authors extended the classification of 1D gapped phases by considering SPT phases with combined time reversal, parity, and/or on-site unitary symmetries and also the possibility of symmetry breaking.
Posted Content
Symmetry protected topological orders in interacting bosonic systems
Xie Chen,Xie Chen,Zheng-Cheng Gu,Zheng-Xin Liu,Zheng-Xin Liu,Xiao-Gang Wen,Xiao-Gang Wen,Xiao-Gang Wen +7 more
TL;DR: In this paper, a systematic way to construct symmetry-protected topological (SPT) states in interacting bosonic systems is presented, which allows us to identify many new SPT phases, including three bosonic versions of topological insulators in three dimensions and one in two dimensions protected by particle number conservation and time reversal symmetry.
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Symmetry-protected topological orders for interacting fermions: Fermionic topological nonlinear σ models and a special group supercohomology theory
TL;DR: In this article, it was shown that a large class of short-range interacting fermionic SPT phases can be described by the group supercohomology theory, which is a generalization of the standard group cohomology theory.
Journal Article
Symmetry-protected topological orders for interacting fermions: Fermionic topological nonlinear σ models and a special group supercohomology theory
TL;DR: In this paper, the authors introduced a group super-cohomology theory for symmetry-protected topological (SPT) phases, which is a generalization of the standard group cohomology theory.