Fused integrable lattice models with quantum impurities and open boundaries

Details Fused integrable lattice models with quantum impurities and open boundaries Fused integrable lattice models with quantum impurities and open boundaries

2003-03-24

arxiv.org/abs/hep-th/0303205v2

Nucl.Phys. B668 (2003) 447-468

Physics

High Energy Physics

High Energy Physics - Theory

21 pages, LATEX, minor revisions

Scientific paper

10.1016/j.nuclphysb.2003.07.001

The alternating integrable spin chain and the $RSOS(q_{1},q_{2};p)$ model in the presence of a quantum impurity are investigated. The boundary free energy due to the impurity is derived, the ratios of the corresponding $g$ functions at low and high temperature are specified and their relevance to boundary flows in unitary minimal and generalized coset models is discussed. Finally, the alternating spin chain with diagonal and non--diagonal integrable boundaries is studied, and the corresponding boundary free energy and $g$ functions are derived.

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