Exact integrability of the su(n) Hubbard model
arXiv:cond-mat/9710083 · doi:10.1142/S0217984998000081
Abstract
The bosonic su(n) Hubbard model was recently introduced. The model was shown to be integrable in one dimension by exhibiting the infinite set of conserved quantities. I derive the R-matrix and use it to show that the conserved charges commute among themselves. This new matrix is a non-additive solution of the Yang-Baxter equation. Some properties of this matrix are derived.
6 pages, LaTeX. One reference added
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