Abstract
Weuse AdS 5 × S 5 superstring sigma model perturbation theory to compute the leading one-loop corrections to the dispersion relations of the excitations near a long spinning string in AdS. This investigation is partially motivated by the OPE-based approach to the computation of the expectation value of null polygonal Wilson loops suggested in arXiv:1006.2788. Our results are in partial agreement with the recent asymptotic Bethe ansatz computation in arXiv:1010.5237. In particular, we find that the heaviest AdS mode (absent in the ABA approach) is stable and has a corrected one-loop dispersion relation similar to the other massive modes. Its stability might hold also at the next-to-leading order as we suggest using a unitarity-based argument.
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ArXiv ePrint: 1011.2755
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Giombi, S., Ricci, R., Roiban, R. et al. Quantum dispersion relations for excitations of long folded spinning superstring in AdS 5 × S 5 . J. High Energ. Phys. 2011, 128 (2011). https://doi.org/10.1007/JHEP01(2011)128
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DOI: https://doi.org/10.1007/JHEP01(2011)128