2002/11/14 by Z. Bajnok, Bajnok, Z., L. Palla +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/0211132
15 pages, 7 eps figures, Talk presented at 'Workshop on Integrable Theories, Solitons and Duality', 1-6 July 2002, Sao Paulo, Brazil
arxiv created 2002/11/14 · arxiv updated 2009/11/30
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.