Reflection Bootstrap Equations for Toda Field Theory
arXiv:hep-th/9311027
Abstract
An algebraic approach to integrable quantum field theory with a boundary (a half line) is presented and interesting algebraic equations, Reflection equations (RE) and Reflection Bootstrap equations (RBE) are discussed. The Reflection equations are a consistent generalisation of Yang-Baxter equations for factorisable scatterings on a half line (or with a reflecting boundary). They determine the so-called reflection matrices. However, for Toda field theory and/or other theories with diagonal S-matrices, the Reflection-Bootstrap equations proposed by Fring and Köberle determine the reflection matrices, since the reflection equations and the Yang-Baxter equations become trivial in these cases. The explicit forms of the reflection matrices together with their symmetry properties are given for various Toda field theories, simply laced and non-simply laced.
12 pages (no figure) harvmac, YITP/U-93-33
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