paper

The SU(2) x SU(2) sector in the string dual of N=6 superconformal Chern-Simons theory

arXiv:0806.4959 · doi:10.1016/j.nuclphysb.2008.10.019

Abstract

We examine the string dual of the recently constructed superconformal Chern-Simons theory of Aharony, Bergman, Jafferis and Maldacena (ABJM theory). We focus in particular on the sector. We find a sigma-model limit in which the resulting sigma-model is two Landau-Lifshitz models added together. We consider a Penrose limit for which we can approach the sector. Finally, we find a new Giant Magnon solution in the sector corresponding to one magnon in each . We put these results together to find the full magnon dispersion relation and we compare this to recently found results for ABJM theory at weak coupling.

19 pages.: Typos fixed, Sec. 6 improved

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