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Abstract: We derive generalized Luscher formulas for finite size corrections in atheory with a general dispersion relation. For the AdS 5xS^5 superstring theseformulas encode leading wrapping interaction effects. We apply the generalizedmu-term formula to calculate finite size corrections to the dispersion relationof the giant magnon at strong coupling. The result exactly agrees with theclassical string computation of Arutyunov, Frolov and Zamaklar. The agreementinvolved a Borel resummation of all even loop-orders of the BES-BHL dressingfactor thus providing a strong consistency check for the choice of the dressingfactor.



Autor: Romuald A. Janik, Tomasz Lukowski

Fuente: https://arxiv.org/







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