Little String Theory from Double-Scaling Limits of Field Theories

Details Little String Theory from Double-Scaling Limits of Field Theories Little String Theory from Double-Scaling Limits of Field Theories

2006-11-02

arxiv.org/abs/hep-th/0611019v2

JHEP 0702:031,2007

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, 5 figures. Minor changes

Scientific paper

10.1088/1126-6708/2007/02/031

We show that little string theory on S^5 can be obtained as double-scaling limits of the maximally supersymmetric Yang-Mills theories on RxS^2 and RxS^3/Z_k. By matching the gauge theory parameters with those in the gravity duals found by Lin and Maldacena, we determine the limits in the gauge theories that correspond to decoupling of NS5-brane degrees of freedom. We find that for the theory on RxS^2, the 't Hooft coupling must be scaled like ln^3(N), and on RxS^3/Z_k, like ln^2(N). Accordingly, taking these limits in these field theories gives Lagrangian definitions of little string theory on S^5.

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