A $H^{3}(G,{\mathbb T})$-valued index of symmetry protected topological phases with on-site finite group symmetry for two-dimensional quantum spin systems

• URL: http://arxiv.org/abs/2101.00426v3
• Date: Thu, 7 Jan 2021 02:13:24 GMT
• Title: A $H^{3}(G,{\mathbb T})$-valued index of symmetry protected topological phases with on-site finite group symmetry for two-dimensional quantum spin systems
• Authors: Yoshiko Ogata
• Abstract summary: We consider SPT-phases with on-site finite group $G$ symmetry $beta$ for two-dimensional quantum spin systems. We show that they have $H3(G,mathbb T)$-valued invariant.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We consider SPT-phases with on-site finite group $G$ symmetry $\beta$ for two-dimensional quantum spin systems. We show that they have $H^{3}(G,{\mathbb T})$-valued invariant.

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