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| Main Author: | |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2510.06226 |
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| _version_ | 1866912671564038144 |
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| author | Wei, Zhong-Chao |
| author_facet | Wei, Zhong-Chao |
| contents | We propose a new analytical tool called time-reversal positivity. It is an analogue of the Majorana reflection positivity in time-reversal symmetric case. This new time-reversal positivity can fully explain the relationship between time-reversal symmetry and the sign-free property in quantum Monte Carlo simulations. Using a cone-theoretical method, we show the ground state uniqueness for the time-reversal symmetric non-hermitian Hubbard model. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_06226 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Time-reversal positivity Wei, Zhong-Chao Strongly Correlated Electrons We propose a new analytical tool called time-reversal positivity. It is an analogue of the Majorana reflection positivity in time-reversal symmetric case. This new time-reversal positivity can fully explain the relationship between time-reversal symmetry and the sign-free property in quantum Monte Carlo simulations. Using a cone-theoretical method, we show the ground state uniqueness for the time-reversal symmetric non-hermitian Hubbard model. |
| title | Time-reversal positivity |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2510.06226 |