On Affine Lie Superalgebras, AdS3/CFT Correspondence And World-Sheets For World-Sheets
نویسنده
چکیده
Space-time N = 2 and N = 4 superconformal algebras can be built using world-sheet free fields or, equivalently, free field representations of ˆ osp(1|2) and ŝl(2|1), respectively. A prescription for the calculation of space-time correlators is given. As applications we compute one and two-point correlation functions of Virasoro (superVirasoro) generators. We also present a possible scenario for taking into account of NS fivebranes in the framework of our construction for the description of superstring on AdS3. It is nothing but a simplified version of Green’s “world-sheets for world-sheets”. PACS: 11.25.Hf; 11.25.-w
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تاریخ انتشار 1999