AdS/CFT duality at strong coupling |
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Authors: | M Beccaria C Ortix |
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Institution: | (1) Dipartimento di Fisica, Universitá di Lecce, INFN, Sezione di Lecce, Via Arnesano, 73100 Lecce, Italy |
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Abstract: | We study the strong-coupling limit of the AdS/CFT correspondence in the framework of a recently proposed fermionic formulation
of the Bethe ansatz equations governing the gauge theory anomalous dimensions. We give examples of states that do not follow
the Gubser-Klebanov-Polyakov law at a large ’t Hooft coupling λ, in contrast to recent results on the quantum string Bethe
equations that are valid in that regime. This result indicates that the fermionic construction cannot be trusted at large
λ, although it remains an efficient tool for computing the weak-coupling expansion of anomalous dimensions.
Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 152, No. 2, pp. 213–224, August, 2007. |
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Keywords: | integrable lattice model AdS/CFT correspondence Bethe ansatz |
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