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BULK SCALAR-FIELD INFLUENCED FRW UNIVERSE MODEL
- Authors
- Lee, Tae Hoon; Lee, Sunnyeo
- Issue Date
- 10-Jan-2012
- Publisher
- WORLD SCIENTIFIC PUBL CO PTE LTD
- Keywords
- Cosmological solutions; higher dimensional gravity; cosmology
- Citation
- MODERN PHYSICS LETTERS A, v.27, no.1
- Journal Title
- MODERN PHYSICS LETTERS A
- Volume
- 27
- Number
- 1
- ISSN
- 0217-7323
- Abstract
- We consider a nonlinear sigma-model-like theory of bulk scalar fields coupled to the five-dimensional Einstein gravity. In Robertson-Walker spacetimes, we find some power-law cosmological solutions for the scale factor when the expansion rate of an extra dimension is proportional to one of our (3 + 1)-dimensional universe. Among them, the solution with a decreasing warp factor could be related to the one-brane model of Randall and Sundrum.
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Related Researcher
- Lee, Tae Hoon
- College of Natural Sciences (Department of Physics)