Affine Toda Field Theory in the Presence of Reflecting Boundaries
نویسندگان
چکیده
We show that the “boundary crossing-unitarity equation” recently proposed by Ghoshal and Zamolodchikov is a consequence of the boundary bootstrap equation for the S-matrix and the wall-bootstrap equation. We solve this set of equations for all affine Toda theories related to simply laced Lie algebras, obtaining explicit formulas for the W-matrix which encodes the scattering of a particle with the boundary in the ground state. For each theory there are two solutions to these equations, related by CDD-ambiguities, each giving rise to different kind of physics. August 1993 ∗ Supported by FAPESP Brasil. Address after 1 of October 1993: Department of Physics, Univ ersity College of Swansea. Swansea SA2 8PP, UK. † Supported in part by CNPq-Brasil. ‡ [email protected] and [email protected]
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