The S-matrix of the AdS5 x S5 superstring

Details The S-matrix of the AdS5 x S5 superstring The S-matrix of the AdS5 x S5 superstring

2010-07-28

arxiv.org/abs/1007.4931v1

Physics

High Energy Physics

High Energy Physics - Theory

Based on PhD thesis, 177 pages

Scientific paper

In this article we review the world-sheet scattering theory of strings on AdS 5 x S5. The asymptotic spectrum of this world-sheet theory contains both fundamental particles and bound states of the latter. We explicitly derive the S-matrix that describes scattering of arbitrary bound states. The key feature that enables this derivation is the so-called Yangian symmetry which is related to the centrally extended su(2|2) superalgebra. Subsequently, we study the universal algebraic properties of the found S-matrix. As in many integrable models, the S-matrix plays a key role in the determination of the energy spectrum. In this context, we employ the Bethe ansatz approach to compute the large volume energy spectrum of string bound states.

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