English

Exact solution of a two-parameter extended Bariev model

Strongly Correlated Electrons 2024-11-14 v2 Mathematical Physics math.MP

Abstract

An exactly solvable strongly correlated electron model with two independent parameters is constructed in the frame of the quantum inverse scattering method, which can be seen as a generalization of the Bariev model. Through the Bethe ansatz method, a set of Bethe ansatz equations is derived. In the thermodynamic limit, to study the ground state of the model, we obtain the integral equations for the density of Bethe roots. Numerical validation are done to confirm the accuracy of our analytic results.

Keywords

Cite

@article{arxiv.2404.06929,
  title  = {Exact solution of a two-parameter extended Bariev model},
  author = {Mingchen Zheng and Xin Zhang and Junpeng Cao and Wen-li Yang and Yupeng Wang},
  journal= {arXiv preprint arXiv:2404.06929},
  year   = {2024}
}
R2 v1 2026-06-28T15:49:49.702Z