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Matching quantum strings to quantum spins: one-loop vs. finite-size corrections

N. Beisert·A. A. Tseytlin·K. Zarembo
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Abstract

We compare quantum corrections to semiclassical spinning strings in AdS(5)xS(5) to one-loop anomalous dimensions in N=4 supersymmetric gauge theory. The latter are computed using the reduced (Landau-Lifshitz) sigma model and with the help of the Bethe ansatz. The results of all three approaches are in remarkable agreement with each other. As a byproduct we establish the relationship between linear instabilities in the Landau-Lifshitz model and analyticity properties of the Bethe ansatz.

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N. Beisert, A. A. Tseytlin, K. Zarembo. 2005-03-10. Matching quantum strings to quantum spins: one-loop vs. finite-size corrections. https://doi.org/10.1016/j.nuclphysb.2005.03.030

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