Related papers: Thermodynamics of a Modified Fermi-Hubbard Model

Thermodynamics of a Modified Fermi-Hubbard Model

URL: http://arxiv.org/abs/2409.11180v1
Date: Mon, 16 Sep 2024 01:28:17 GMT
Title: Thermodynamics of a Modified Fermi-Hubbard Model
Authors: Moorad Alexanian,
Abstract summary: A recently introduced recurrence-relation ansatz applied to the Fermi-Hubbard model gives rise to a soluble model. The modified model exhibits a continuous phase transition reminiscent of the integer quantum Hall resistance and a ground state, first-order phase transition.
Score: 0.0
License: http://creativecommons.org/licenses/by/4.0/
Abstract: A recently introduced recurrence-relation ansatz applied to the Fermi-Hubbard model gives rise to a soluble model and here is used to calculate several thermodynamic observables. The constraint of unit density per site, density = 1, is applied and some of the results are compared to cases where the constraint is not imposed. The modified model 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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