Transmission matrices in gl(N) & U_q(gl(N)) quantum spin chains
classification
✦ hep-th
cond-mat.stat-mechmath-phmath.MPnlin.SI
keywords
spintransmissionchainsmatricesquantumalgebra-amplitudesansatz
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The gl(N) and U_q(gl(N)) quantum spin chains in the presence of integrable spin impurities are considered. Within the Bethe ansatz formulation, we derive the associated transmission amplitudes, and the corresponding transmission matrices -representations of the underlying quadratic algebra- that physically describe the interaction between the various particle-like excitations displayed by these models and the spin impurity.
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