Abstract
We study the relation between vertex operators in AdS 5 × S 5 and classical spinning string solutions. In the limit of large quantum numbers the treatment of vertex operators becomes semiclassical. In this regime, a given vertex operator carrying a certain set of quantum numbers defines a singular solution. We show in a number of examples that this solution coincides with the classical string solution with the same quantum numbers but written in a different two-dimensional coordinate system. The marginality condition imposed on an operator yields a relation between the energy and the other quantum numbers which is shown to coincide with that of the corresponding classical string solution. We also argue that in some cases vertex operators in AdS 5×S 5 cannot be given by expressions similar to the ones in flat space and a more involved consideration is required.
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Buchbinder, E.I. Energy-spin trajectories in AdS 5 × S 5 from semiclassical vertex operators. J. High Energ. Phys. 2010, 107 (2010). https://doi.org/10.1007/JHEP04(2010)107
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DOI: https://doi.org/10.1007/JHEP04(2010)107