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S-matrix for magnons in the D1-D5 system

David, Justin R and Sahoo, Bindusar (2010) S-matrix for magnons in the D1-D5 system. In: Journal of High Energy Physics (10).

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We show that integrability and symmetries of the near horizon geometry of the D1-D5 system determine the S-matrix for the scattering of magnons with polarizations in AdS(3) x S-3 completely up to a phase. Using semi-classical methods we evaluate the phase to the leading and to the one-loop approximation in the strong coupling expansion. We then show that the phase obeys the unitarity constraint implied by the crossing relations to the one-loop order. We also verify that the dispersion relation obeyed by these magnons is one-loop exact at strong coupling which is consistent with their BPS nature.

Item Type: Journal Article
Publication: Journal of High Energy Physics
Publisher: Springer
Additional Information: Copyright of this article belongs to Springer.
Keywords: D-branes;AdS-CFT Correspondence
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited: 13 Dec 2010 09:10
Last Modified: 16 Dec 2010 07:40
URI: http://eprints.iisc.ac.in/id/eprint/34451

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