SO(4)-invariant basis functions for strongly correlated Fermi systems

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SO(4) invariant basis functions for strongly correlated Fermi systems

We show how to construct SO(4) invariant functions for strongly correlated Fermi systems on lattices of finite sizes. We illustrate the method on the case of the 1D Hubbard chain with four and with six sites. PACS: 03.65.Ge, 03.70.+k, 11.10.Lm ∗Istituto Nazionale di Fisica per la Materia and Department of Theoretical Physics, University of Salerno, 84100 Salerno, Italy.

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ژورنال

عنوان ژورنال: Physics Letters A

سال: 1996

ISSN: 0375-9601

DOI: 10.1016/0375-9601(96)00338-6