Wilson Line in SU(2) WZW Model and Spherical D-Brane

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概要

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• In this paper, based on [Y. Hikida, M. Nozaki and Y. Sugawara, hep-th/ 0101211], we discuss some aspects of D-branes in SU(2) WZW model from the approach of the boundary state techniques. We realize the "fuzzy sphere" configuration of multiple D0-branes as the boundary state with the insertion of suitable Wilson line. By making use of the path-integral representation we show that this boundary state preserves the appropriate boundary conditions and leads to the Cardy state describing a spherical D2-brane under the semiclassical approximation. This result directly implies that the spherical D2-brane in SU(2) WZW model can be well described as the bound state of D0-branes. We also make some comments on the supersymmetric extension and the BPS and non-BPS configurations in the NS5 background.

• 理論物理学刊行会の論文
• 2002-03-29

著者

• SUGAWARA Yuji

  Department of Cardiovascular Surgery, Graduate School of Biomedical Sciences, Hiroshima University

• Sugawara Yuji

  Department Of Cardiovascular Surgery Fukuyama Cadiovascular Hospital

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• Wilson Line in SU(2) WZW Model and Spherical D-Brane

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