Integrable eight-state supersymmetric $U$ model with boundary terms and its Bethe ansatz solution

Abstract

A class of integrable boundary terms for the eight-state supersymmtric $U$ model are presented by solving the graded reflection equations. The boundary model is solved by using the coordinate Bethe ansatz method and the Bethe ansatz equations are obtained.

5 pages, RevTex

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• Nine classes of integrable boundary conditions for the eight-state supersymmetric fermion model