Hybrid Superstring on AdS_3 and Space-Time Superconformal Symmetry(Particles and Fields)
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概要
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Using a hybrid formalism, superstrings on AdS_3×S^1 are studied in a manifestly supersymmetric manner. The world-sheet fields in this description including superspace coordinates are obtained through a field redefinition from the corresponding ones in the RNS formalism. The physical states are defined with the BRST cohomology as an N=4 topological string theory. The physical spectra for some lower mass levels are investigated. We identify two series of the space-time chiral primaries which have already been obtained from the analysis in the RNS formalism. We find that they are described by the chiral and the vector supermultiplets. but the on-shell physical structure of the latter depends on whether it is massive or massless. The space-time supersymmetry on this background is extended to the boundary N=2 superconformal symmetry. We explicitly construct its generators and study how they act on specific supermultiplets.
- 一般社団法人日本物理学会の論文
- 2004-10-25
著者
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Kunitomo Hiroshi
Yukawa Institute For Theoretical Physics Kyoto University
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KUNITOMO Hiroshi
Institute for Nuclear Study, University of Tokyo : Department of Physics, Osaka University
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