Spin chains with boundary inhomogeneities

Published 11 May 2021 in hep-th, cond-mat.stat-mech, math-ph, and math.MP | (2105.04982v2)

Abstract: We investigate the effect of introducing a boundary inhomogeneity in the transfer matrix of an integrable open quantum spin chain. We find that it is possible to construct a local Hamiltonian, and to have quantum group symmetry. The boundary inhomogeneity has a profound effect on the Bethe ansatz solution.

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