A dynamic su(1|1)^2 S-matrix for AdS3/CFT2
High Energy Physics - Theory
2015-06-12 v3
Abstract
We derive the S-matrix for the d(2,1;alpha)^2 symmetric spin-chain of AdS3/CFT2 by considering the centrally extended su(1|1)^2 algebra acting on the spin-chain excitations. The S-matrix is determined uniquely up to four scalar factors, which are further constrained by a set of crossing relations. The resulting scattering includes non-trivial processes between magnons of different masses that were previously overlooked.
Keywords
Cite
@article{arxiv.1211.5119,
title = {A dynamic su(1|1)^2 S-matrix for AdS3/CFT2},
author = {Riccardo Borsato and Olof Ohlsson Sax and Alessandro Sfondrini},
journal= {arXiv preprint arXiv:1211.5119},
year = {2015}
}
Comments
41 pages, 4 figures. v2: corrected a misprint in appendix E, updated references, corrected some typos. v3: added a new appendix F with comparison to the literature, changed notation for the crossing equations, added references. Published version