Boundary reduction formula

Abstract

An asymptotic theory is developed for general non-integrable boundary quantum field theory in 1+1 dimensions based on the Langrangean description. Reflection matrices are defined to connect asymptotic states and are shown to be related to the Green functions via the boundary reduction formula derived. The definition of the $R$-matrix for integrable theories due to Ghoshal and Zamolodchikov and the one used in the perturbative approaches are shown to be related.

12 pages, Latex2e file with 5 eps figures, two Appendices about the boundary Feynman rules and the structure of the two point functions are added

References in corpus (1)

• Second order quantum corrections to the classical reflection factor of the sinh-Gordon model

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