A semi-classical limit of the gauge/string correspondence

Details A semi-classical limit of the gauge/string correspondence A semi-classical limit of the gauge/string correspondence

2002-04-04

arxiv.org/abs/hep-th/0204051v3

Nucl.Phys. B636 (2002) 99-114

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, latex, one figure. v2: references added, improved discussion. v3: another ref added, minor corrections, version to a

Scientific paper

A world-sheet sigma model approach is applied to string theories dual to four-dimensional gauge theories, and semi-classical soliton solutions representing highly excited string states are identified which correspond to gauge theory operators with relatively small anomalous dimensions. The simplest class of such states are strings on the leading Regge trajectory, with large spin in AdS_5. These correspond to operators with many covariant derivatives, whose anomalous dimension grows logarithmically with the space-time spin. In the gauge theory, the logarithmic scaling violations are similar to those found in perturbation theory. Other examples of highly excited string states are also considered.

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