Scattering and duality in the 2 dimensional OSP(2|2) Gross Neveu and sigma models
Abstract
We write the thermodynamic Bethe ansatz for the massive OSp(2|2) Gross Neveu and sigma models. We find evidence that the GN S matrix proposed by Bassi and Leclair [12] is the correct one. We determine features of the sigma model S matrix, which seem highly unconventional; we conjecture in particular a relation between this sigma model and the complex sine-Gordon model at a particular value of the coupling. We uncover an intriguing duality between the OSp(2|2) GN (resp. sigma) model on the one hand, and the SO(4) sigma (resp. GN model) on the other, somewhat generalizing to the massive case recent results on OSp(4|2). Finally, we write the TBA for the (SUSY version of the) flow into the random bond Ising model proposed by Cabra et al. [39], and conclude that their S matrix cannot be correct.
Keywords
Cite
@article{arxiv.0910.0637,
title = {Scattering and duality in the 2 dimensional OSP(2|2) Gross Neveu and sigma models},
author = {H. Saleur and B. Pozsgay},
journal= {arXiv preprint arXiv:0910.0637},
year = {2010}
}
Comments
41 pages, 27 figures. v2: minor revision