SUSY sineGordon theory as a perturbed conformal field theory and finite size effects
Abstract
We consider SUSY sineGordon theory in the framework of perturbed conformal field theory. Using an argument from Zamolodchikov, we obtain the vacuum structure and the kink adjacency diagram of the theory, which is crosschecked against the exact Smatrix prediction, firstorder perturbed conformal field theory (PCFT), the NLIE method and truncated conformal space approach. We provide evidence for consistency between the usual Lagrangian description and PCFT on the one hand, and between PCFT, NLIE and a massgap formula conjectured by Baseilhac and Fateev, on the other. In addition, we extend the NLIE description to all the vacua of the theory.
 Publication:

Nuclear Physics B
 Pub Date:
 February 2004
 DOI:
 10.1016/j.nuclphysb.2003.11.036
 arXiv:
 arXiv:hepth/0309120
 Bibcode:
 2004NuPhB.679..521B
 Keywords:

 High Energy Physics  Theory
 EPrint:
 26 pages, 9 eps and 1 pstex figures. v2: References added