String States on AdS_3 x S^3 from the Supergroup
High Energy Physics - Theory
2015-06-11 v3
Abstract
In the hybrid formulation of string theory on AdS_3 x S^3, the compactification-independent physical spectrum at the first massive level is determined. We find that these states transform in representations of the Lie superalgebra psl(2|2) and present a cohomological characterisation of them within the context of the PSL(2|2) WZW model. We conjecture that a similar cohomological description of the physical states also exists at higher mass levels and give partial evidence for this by comparing our results to the RNS string spectrum.
Keywords
Cite
@article{arxiv.1208.0345,
title = {String States on AdS_3 x S^3 from the Supergroup},
author = {Sebastian Gerigk},
journal= {arXiv preprint arXiv:1208.0345},
year = {2015}
}
Comments
38 pages, LaTeX; v2: explanations and references added; v3: typos corrected