SEMICLASSICAL QUANTIZATION OF SUPERSTRINGS: AdS5 × S5 AND BEYOND
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Publication:4808276
DOI10.1142/S0217751X03012382zbMATH Open1080.81585arXivhep-th/0209116MaRDI QIDQ4808276
Author name not available (Why is that?)
Publication date: 2003
Published in: (Search for Journal in Brave)
Abstract: We discuss semiclassical quantization of closed superstrings in AdS_5 x S^5. We consider two basic examples: point-like string boosted along large circle of S^5 and folded string rotating in AdS_5. In the first case we clarify the general structure of the sigma model perturbation theory for the energy of string states beyond the leading 1-loop order (related to the plane-wave limit). In the second case we argue that the large spin limit of the expression for the ground-state energy (i.e. for the dimension of the corresponding minimal twist gauge theory operator) has the form S + f(lambda) ln S to all orders in alpha' ~ lambda^{-1/2} expansion, in agreement with the AdS/CFT duality. We also suggest an extension of the semiclassical approach to near-conformal (near-AdS) cases on the example of the fractional D3-brane on conifold background. Expanded version of talks at the Third International Sakharov Conference on Physics, Moscow, June 24-29, 2002 and at Strings 2002, Cambridge, July 15-20,2002
Full work available at URL: https://arxiv.org/abs/hep-th/0209116
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