On integrability of the one-dimensional Hubbard model
arXiv:2310.12232 · doi:10.1016/j.physletb.2023.138291
Abstract
We find a family of solutions to Zamolodchikov's tetrahedral algebra corresponding to the fermionic R-operator for the free fermion model of the difference type in one of the spectral parameters, construct an extension of the R-operator for a system of two spins satisfying the Yang-Baxter equation, and find the local charges. We also construct a twisted monodromy operator, which leads to the one-dimensional Hubbard model.
This is the second part of arXiv:2212.095141. 11p; v2: typo corrected, reference added