Gravitational Waves in String theory in Anti-de Sitter Background

Details Gravitational Waves in String theory in Anti-de Sitter Background Gravitational Waves in String theory in Anti-de Sitter Background

2004-03-25

arxiv.org/abs/hep-th/0403253v3

Phys.Lett. B594 (2004) 368-374

Physics

High Energy Physics

High Energy Physics - Theory

11 pages (latex), a note has been added

Scientific paper

10.1016/j.physletb.2004.05.036

Inspired by the studies of gravitational waves in anti-de Sitter universe, in general relativity, in this paper we investigate the possibility of similar solutions in IIB string theory on $AdS_3 x S^3 x R^4$. We give a general form for such solutions in this background and present several explicit examples, by directly solving the field equations, as well as the ones obtained by taking a scaling limit on D1-D5 brane systems in a pp-wave background. The form of the metric in our solutions corresponds to a gravitational wave in $AdS_3$. We show the supersymmetric nature of these solutions and discuss the possibility of their generalizations to other anti-de Sitter backgrounds, including the ones in four dimensions.

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