Quantum AdS_5 x S^5 superstring in the AdS light-cone gauge

Details Quantum AdS_5 x S^5 superstring in the AdS light-cone gauge Quantum AdS_5 x S^5 superstring in the AdS light-cone gauge

2009-12-27

arxiv.org/abs/0912.5105v1

Physics

High Energy Physics

High Energy Physics - Theory

21pages, Latex

Scientific paper

We consider the AdS_5 x S^5 superstring in the light-cone gauge adapted to a massless geodesic in AdS5 in the Poincare patch. The resulting action has a relatively simple structure which makes it a natural starting point for various perturbative quantum computations. We illustrate the utility of this AdS light-cone gauge action by computing the 1-loop and 2-loop corrections to the null cusp anomalous dimension reproducing in a much simpler and efficient way earlier results obtained in conformal gauge. This leads to a further insight into the structure of the superstring partition function in non-trivial background.

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