Anisotropic power-law inflation for the Dirac-Born-Infeld theory

被引：46
|
作者：
Do, Tuan Q. [1 ]
Kao, W. F. [1 ]
机构：
[1] Chiao Tung Univ, Inst Phys, Hsinchu, Taiwan
来源：
PHYSICAL REVIEW D | 2011年 / 84卷 / 12期
关键词：
COSMOLOGICAL MODELS; EINSTEIN SOLVMANIFOLDS; INSTABILITY; BEHAVIOR; UNIVERSE;
D O I：
10.1103/PhysRevD.84.123009
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We find a new set of the Bianchi type I power-law expanding solutions in a string-motivated Dirac-Born-Infeld theory. Stability analysis shows that these power-law inflationary solutions remain stable with or without the contribution of the Dirac-Born-Infeld effect. We also find a new set of Bianchi type I expanding power-law solutions in a two scalar Dirac-Born-Infeld model with an additional phantom field. It is shown that the inclusion of the phantom field turns the Bianchi type I power-law solutions unstable during the inflationary phase.
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收藏
页数：15
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