Boundary sine-Gordon model

Details Boundary sine-Gordon model Boundary sine-Gordon model

2002-11-14

arxiv.org/abs/hep-th/0211132v1

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 7 eps figures, Talk presented at 'Workshop on Integrable Theories, Solitons and Duality', 1-6 July 2002, Sao Paulo,

Scientific paper

We review our recent results on the on-shell description of sine-Gordon model with integrable boundary conditions. We determined the spectrum of boundary states together with their reflection factors by closing the boundary bootstrap and checked these results against WKB quantization and numerical finite volume spectra obtained from the truncated conformal space approach. The relation between a boundary resonance state and the semiclassical instability of a static classical solution is analyzed in detail.

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