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

页码：3701 / 3712

页数：12

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