SUSY sine-Gordon theory as a perturbed conformal field theory and finite size effects
Date: 2004
MTMT: 1114047
WoS ID: 000188741800006
Scopus ID: 0347123064
Abstract:
We consider SUSY sine-Gordon 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 cross-checked against the exact S-matrix prediction,
first-order 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. (C) 2003 Elsevier B.V. All
rights reserved.