New integrable boundary conditions for XXX model with impurities
Centre for Mathematical Physics, Department of Mathematics
University of Queensland - Brisbane, Qld 4072, Australia
Corresponding author: email@example.com
Accepted: 20 October 2000
A new class of integrable boundary conditions for the XXX model with impurity is presented by means of the boundary quantum inverse scattering method. The Hamiltonian with impurity is constructed and the diagonal boundary K-matrices depending on the spins of the electrons are found. The boundary system is solved by using the algebraic Bethe ansatz technique and the Bethe ansatz equations are derived.
PACS: 71.10.Fd – Lattice fermion models (Hubbard model, etc.) / 75.10.Jm – Quantized spin models / 75.30.Hx – Magnetic impurity interactions
© EDP Sciences, 2001