Universal boundary reflection amplitudes

Castro-Alvaredo, O. & Fring, A. (2004). Universal boundary reflection amplitudes. Nuclear Physics B, 682(3), 551 - 584. doi: 10.1016/j.nuclphysb.2004.01.009

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Abstract

For all affine Toda field theories we propose a new type of generic boundary bootstrap equations, which can be viewed as a very specific combination of elementary boundary bootstrap equations. These equations allow to construct general solutions for the boundary reflection amplitudes, which are valid for theories related to all simple Lie algebras, that is simply laced and non-simply laced. We provide a detailed study of these solutions for concrete Lie algebras in various representations. The boundary bootstrap equations relating different types of exited boundary states are not automatically solved by our expressions.

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