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  Time-dependent backgrounds from supergravity with gauged non-compact R-symmetry

Behrndt, K., & Cvetic, M. (2003). Time-dependent backgrounds from supergravity with gauged non-compact R-symmetry. Classical and Quantum Gravity, 20(19), 4177-4194.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-52F1-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-52F2-D
Genre: Journal Article

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51003.pdf (Preprint), 260KB
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 Creators:
Behrndt, Klaus1, Author
Cvetic, Mirjam, Author
Affiliations:
1Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24012              

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 Abstract: We obtain a general class of time-dependent, asymptotically de Sitter backgrounds which solve the first order bosonic equations that extremize the action for supergravity with gauged non-compact R-symmetry. These backgrounds correspond only to neutral fields with the correct sign of kinetic energy. Within N=2 five-dimensional supergravity with vector-superfields we provide examples of multi-centered charged black holes in asymptotic de Sitter space, whose spatial part is given by a timedependent hyper-Kähler space. Reducing these backgrounds to four dimensions yields asymptotically de Sitter multi-centered charged black hole backgrounds and we show that they are related to an instanton configuration by a massive T-duality over time. Within N=2 gauged supergravity in four (and five)-dimensions with hyper-multiplets there could also be neutral cosmological backgrounds that are regular and correspond to the different de Sitter spaces at early and late times.

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Language(s): eng - English
 Dates: 2003
 Publication Status: Published in print
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 Identifiers: eDoc: 51003
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Title: Classical and Quantum Gravity
Source Genre: Journal
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Pages: - Volume / Issue: 20 (19) Sequence Number: - Start / End Page: 4177 - 4194 Identifier: -