Journal
PHYSICAL REVIEW B
Volume 107, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.107.115123
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In this study, we systematically investigate the symmetry-protected topological gapped phases of quantum spin chains using matrix product states. We consider the spatial symmetries of the one-dimensional lattice together with an additional vertical reflection. We identify seventeen distinct non-trivial phases and compare the topological indices obtained from the MPS analysis with the group cohomological predictions.
We make a systematic study of symmetry-protected topological gapped phases of quantum spin chains in the presence of the frieze space groups in one dimension using matrix product states. Here, the spatial symmetries of the one-dimensional lattice are considered together with an additional vertical reflection, which we take to be an on-site Z2 symmetry. We identify seventeen distinct non-trivial phases, define canonical forms, and compare the topological indices obtained from the MPS analysis with the group cohomological predictions. We furthermore construct explicit renormalization group fixed-point wave functions for symmetry-protected topological phases with global on-site symmetries, possibly combined with time reversal and parity symmetry. En route, we demonstrate how group cohomology can be computed using the Smith normal form.
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