Magnon bound states and the AdS/CFT correspondence
- 27 September 2006
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 39 (41), 13119-13127
- https://doi.org/10.1088/0305-4470/39/41/s18
Abstract
We study the spectrum of asymptotic states in the spin-chain description of planar N=4 SUSY Yang-Mills. In addition to elementary magnons, the asymptotic spectrum includes an infinite tower of multi-magnon bound states with exact dispersion relation, Delta-J_{1} = sqrt{Q^{2}+(lambda/pi^2)sin^2(p/2)}, where the positive integer Q is the number of constituent magnons. These states account precisely for the known poles in the exact S-matrix. Like the elementary magnon, they transform in small representations of supersymmetry and are present for all values of the 't Hooft coupling. At strong coupling we identify the dual states in semiclassical string theory.Other Versions
This publication has 23 references indexed in Scilit:
- Bethe ansatz for a quantum supercoset sigma modelPhysical Review D, 2005
- Semiclassical Bethe ansatz and AdS/CFTFortschritte der Physik, 2005
- Higher-loop integrability in N="4 gauge theoryComptes Rendus Physique, 2004
- Semiclassical integrability in AdS/CFTComptes Rendus Physique, 2004
- The dilatation operator of super Yang–Mills theory and integrabilityPhysics Reports, 2004
- Hidden symmetries of thesuperstringPhysical Review D, 2004
- TheNuclear Physics B, 2003
- The dilatation operator of conformalNuclear Physics B, 2003
- The Bethe-ansatz for Script N = 4 super Yang-MillsJournal of High Energy Physics, 2003
- Aspects of semiclassical strings in AdS5Physics Letters B, 2002