The diagonal cosets of the Heisenberg group
High Energy Physics - Theory
2014-11-18 v2
Abstract
In this paper we study the diagonal cosets of the non-compact H4 WZW model. Generalising earlier work by Antoniadis and Obers, we provide an exact world-sheet description for several families of non-maximally symmetric gravitational plane waves with background NS fluxes. We show that the sigma-models that correspond to an asymmetric action of the gauge group smoothly interpolate between singular and non-singular plane waves. We also analyse the representations of the coset chiral algebra and derive the spectrum of all the models.
Keywords
Cite
@article{arxiv.0801.4634,
title = {The diagonal cosets of the Heisenberg group},
author = {Giuseppe D'Appollonio and Thomas Quella},
journal= {arXiv preprint arXiv:0801.4634},
year = {2014}
}
Comments
42 pages, v2: more explicit expressions for the background fields in section 3.2.2, reference [49] added, some typos corrected