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APS » Journals » Phys. Rev. Lett. » Volume 91 » Issue 6
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Phys. Rev. Lett. 91, 061303 (2003) [4 pages]

Accelerating Cosmologies from Spacelike Branes

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Nobuyoshi Ohta*
Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
and Interdisciplinary Center for Theoretical Study, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China

Received 31 March 2003; published 7 August 2003

We point out that the recently proposed model of a flat four-dimensional universe with accelerated expansion in string or M theory is a special case of time-dependent solutions that the author found under the name of spacelike (S) branes. We also show that similar accelerating models can be obtained from S branes if the internal space is chosen to be hyperbolic or flat spaces.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.061303
DOI:
10.1103/PhysRevLett.91.061303
PACS:
98.80.Cq, 11.25.Mj, 11.25.Wx, 11.25.Yb

*Electronic address: ohta@phys.sci.osaka-u.ac.jp

 
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