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arXiv · hep-th/9907200

Superstring Theory on AdS_2 x S^2 as a Coset Supermanifold

N. Berkovits·M. Bershadsky·T. Hauer·S. Zhukov·B. Zwiebach
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Abstract

We quantize the superstring on the AdS_2 x S^2 background with Ramond-Ramond flux using a PSU(1,1|2)/U(1) x U(1) sigma model with a WZ term. One-loop conformal invariance of the model is guaranteed by a general mechanism which holds for coset spaces G/H where G is Ricci-flat and H is the invariant locus of a Z_4 automorphism of G. This mechanism gives conformal theories for the PSU(1,1|2) x PSU(2|2)/SU(2) x SU(2) and PSU(2,2|4)/SO(4,1) x SO(5) coset spaces, suggesting our results might be useful for quantizing the superstring on AdS_3 x S^3 and AdS_5 x S^5 backgrounds.

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N. Berkovits, M. Bershadsky, T. Hauer, S. Zhukov, B. Zwiebach. 1999-08-06. Superstring Theory on AdS_2 x S^2 as a Coset Supermanifold. https://doi.org/10.1016/s0550-3213(99)00683-5

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