期刊
PHYSICS LETTERS B
卷 676, 期 4-5, 页码 161-167出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2009.04.080
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资金
- CCNACyT Mexico [49865-F, 54576-F, 56159-F, 49924-J, 10101/131/07 C-234/07]
- Instituto Avanzado de Cosmologia (IAC) Collaboration
We apply the dynamical systems tools to study the linear dynamics of a Self-interacting scalar field trapped on a Randall-Sundrum brane. The simplest kinds of self-interaction potentials are investigated: (a) constant potential. and (b) exponential potential. It is shown that the dynamics of the Randall-Sundrum model significantly differs from the standard four-dimensional behavior at early times: in all cases of interest the (singular) empty universe is the Past attractor for every trajectory in phase space, meanwhile the kinetic energy-dominated solution is always a saddle critical point. The late-time dynamics is not affected by the brane effects. (C) 2009 Published by Elsevier B.V.
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