Hubbard model: Pinning of occupation numbers and role of symmetries
Fermionic natural occupation numbers do not only obey Pauli's exclusion principle, but are even further restricted by so-called generalized Pauli constraints. Such restrictions are particularly relevant whenever they are saturated by given natural occupation numbers λ - =(λi). For few-site Hubb...
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| Format: | Journal article |
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American Physical Society
2015
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