Matching quantum strings to quantum spins: one-loop vs. finite-size corrections
High Energy Physics - Theory
2008-11-26 v3 Statistical Mechanics
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.
Cite
@article{arxiv.hep-th/0502173,
title = {Matching quantum strings to quantum spins: one-loop vs. finite-size corrections},
author = {N. Beisert and A. A. Tseytlin and K. Zarembo},
journal= {arXiv preprint arXiv:hep-th/0502173},
year = {2008}
}
Comments
23 pages. v2: references added, v3: misprints corrected and references added