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arXiv · 2109.06118

Tensor network representations of fermionic crystalline topological phases on two-dimensional lattices

Jian-Hao Zhang·Shuo Yang
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Abstract

We investigate the tensor network representations of fermionic crystalline symmetry-protected topological (SPT) phases on two-dimensional lattices. As a mapping from virtual indices to physical indices, projected entangled-pair state (PEPS) serves as a concrete way to construct the wavefunctions of 2D crystalline fermionic SPT (fSPT) phases protected by 17 wallpaper group symmetries, for both spinless and spin-1/2 fermions. Based on PEPS, the full classification of 2D crystalline fSPT phases with wallpaper groups can be obtained. Tensor network states provide a natural framework for studying 2D crystalline fSPT phases.

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Jian-Hao Zhang, Shuo Yang. 2021-09-13. Tensor network representations of fermionic crystalline topological phases on two-dimensional lattices. https://arxiv.org/abs/2109.06118

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