Yangian in the Twistor String
High Energy Physics - Theory
2011-03-17 v1
Abstract
We study symmetries of the quantized open twistor string. In addition to global PSL(4|4) symmetry, we find non-local conserved currents. The associated non-local charges lead to Ward identities which show that these charges annihilate the string gluon tree amplitudes, and have the same form as symmetries of amplitudes in N=4 super conformal Yang Mills theory. We describe how states of the open twistor string form a realization of the PSL(4|4) Yangian superalgebra.
Cite
@article{arxiv.1008.0302,
title = {Yangian in the Twistor String},
author = {John Corn and Thomas Creutzig and Louise Dolan},
journal= {arXiv preprint arXiv:1008.0302},
year = {2011}
}
Comments
37 pages, 4 figures