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arXiv · hep-th/0604039

Noncommutative D-brane from Covariant AdS Superstring

Makoto Sakaguchi·Kentaroh Yoshida
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Abstract

We explore noncommutative D-branes in the AdS_5xS^5 background from the viewpoint of κ-invariance of a covariant open string action in the Green-Schwarz formulation. Boundary conditions to ensure the κ-invariance of the action lead to possible configurations of noncommutative D-branes. With this covariant method, we derive configurations of 1/4 BPS noncommutative D-branes. The resulting D-branes other than D-string are 1/4 BPS at any places, and the D-string is exceptional and it is 1/2 BPS at the origin and 1/4 BPS outside the origin. All of them are reduced to possible 1/4 BPS or 1/2 BPS AdS D-branes in the commutative limit or the strong magnetic flux limit. We also apply the same analysis to an open superstring in the pp-wave background and derive configurations of 1/4 BPS noncommutative D-branes in the pp-wave. These D-branes consistently related to AdS D-branes via the Penrose limit.

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Makoto Sakaguchi, Kentaroh Yoshida. 2006-04-06. Noncommutative D-brane from Covariant AdS Superstring. https://doi.org/10.1016/j.nuclphysb.2007.12.032

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