Brane cosmology with a non-minimally coupled bulk-scalar field

被引：21
|
作者：
Bogdanos, C. [1 ]
Dimitriadis, A. [1 ]
Tamvakis, K. [1 ]
机构：
[1] Univ Ioannina, Dept Phys, GR-45110 Ioannina, Greece
来源：
CLASSICAL AND QUANTUM GRAVITY | 2007年 / 24卷 / 14期
关键词：
D O I：
10.1088/0264-9381/24/14/010
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider the cosmological evolution of a brane in the presence of a bulk scalar field coupled to the Ricci scalar through a term f (phi) R. We derive the generalized Friedmann equation on the brane in the presence of arbitrary brane and bulk-matter, as well as the scalar field equation, allowing for a general scalar potential V (phi). We focus on a quadratic form of the above non-minimal coupling -xi phi R-2 and obtain a class of late-time solutions for the scale factor and the scalar field on the brane that exhibit accelerated expansion for a range of the non-minimal coupling parameter xi.
引用
收藏
页码：3701 / 3712
页数：12
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