Quantization of Superstrings in Ramond-Ramond Backgrounds
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چکیده
We present a perturbative study of Ramond-Ramond backgrounds in the NSR formalism. We show how to perform σ-model computations and discuss in detail the structure of the BRST charge and picture changing operators. Contact terms play a vital role in the analysis. We also give evidence for a two loop non-renormalization theorem for the background beta functions. email:[email protected] email:[email protected]
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تاریخ انتشار 2001