Wilson Line in SU(2) WZW Model and Spherical D-Brane
In: Progress of Theoretical Physics Supplement, Jg. 144 (2001-12-01), S. 155-166
Online
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Zugriff:
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.
Titel: |
Wilson Line in SU(2) WZW Model and Spherical D-Brane
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Autor/in / Beteiligte Person: | Sugawara, Yuji |
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Zeitschrift: | Progress of Theoretical Physics Supplement, Jg. 144 (2001-12-01), S. 155-166 |
Veröffentlichung: | Oxford University Press (OUP), 2001 |
Medientyp: | unknown |
ISSN: | 0375-9687 (print) |
DOI: | 10.1143/ptps.144.155 |
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