A Soluble Modified Fermi-Hubbard Model

• URL: http://arxiv.org/abs/2410.17299v1
• Date: Tue, 22 Oct 2024 12:17:31 GMT
• Title: A Soluble Modified Fermi-Hubbard Model
• Authors: Moorad Alexanian,
• Abstract summary: The resulting modified Fermi-Hubbard model is soluble and exhibits a continuous phase transition (second order) reminiscent of the integer quantum Hall resistance and a ground-state, first-order phase transition.
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• Abstract: A recently introduced recurrence-relation ansatz applied to the Bose-Hubbard model is here used in the Fermi-Hubbard model. The resulting modified Fermi-Hubbard model is soluble and exhibits a continuous phase transition (second order) reminiscent of the integer quantum Hall resistance and a ground-state, first-order phase transition.

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