A Soluble Modified Fermi-Hubbard Model

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-...

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Bibliographic Details
Published in:arXiv.org 2024-10
Main Author: Alexanian, Moorad
Format: Article
Language:English
Subjects:
Phase transitions
Online Access:Get full text
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.2410.17299