Non-local charges, Zm gradings and coset space actions
High Energy Physics - Theory
2007-05-23 v2
Abstract
The construction of flat currents, and hence conserved non-local charges, for the superstring on AdS_5 x S^5 is generalised. It is shown that such currents exist for sigma-model type actions on all coset (super-)spaces G/H in which, at the level of the Lie algebras, h is the grade-zero subspace of a Zm grading of g. This is true for an essentially unique choice of the Wess-Zumino term, which is determined.
Keywords
Cite
@article{arxiv.hep-th/0503008,
title = {Non-local charges, Zm gradings and coset space actions},
author = {Charles A. S. Young},
journal= {arXiv preprint arXiv:hep-th/0503008},
year = {2007}
}
Comments
18 pages, LaTeX, extended discussion in section 2, references added