Dynamics of a scalar field in a brane world

被引：29
|
作者：
Mizuno, S
Maeda, K
Yamamoto, K
机构：
[1] Waseda Univ, Dept Phys, Shinjuku Ku, Tokyo 1698555, Japan
[2] Waseda Univ, Adv Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan
[3] Waseda Univ, Waseda Inst Astrophys, Shinjuku Ku, Tokyo 1698555, Japan
[4] Shinano Mainichi Shimbun Inc, Nagano 3800836, Japan
来源：
PHYSICAL REVIEW D | 2003年 / 67卷 / 02期
关键词：
D O I：
10.1103/PhysRevD.67.023516
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the dynamics of a scalar field in brane cosmology. We assume that the scalar field is confined in our four-dimensional world. As for the potential of the scalar field, we discuss three typical models: (1) a power-law potential, (2) an inverse-power-law potential, and (3) an exponential potential. We show that the behavior of the scalar field is very different from that in conventional cosmology when the energy density square of the term dominates.
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页数：15
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