期刊
FORUM OF MATHEMATICS PI
卷 9, 期 -, 页码 -出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/fmp.2021.17
关键词
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资金
- JSPS KAKENHI [16K05171, 19K03534]
- JST CREST [JPMJCR19T2]
- Grants-in-Aid for Scientific Research [19K03534, 16K05171] Funding Source: KAKEN
This study explores symmetry-protected topological phases in two-dimensional quantum spin systems with specific symmetries, demonstrating the existence of a specific invariant for these phases.
We consider symmetry-protected topological phases with on-site finite group G symmetry beta for two-dimensional quantum spin systems. We show that they have H-3 (G, T)-valued invariant.
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