Non-geodesic motion in f (G) gravity with non-minimal coupling

被引：34
|
作者：
Mohseni, Morteza [1 ]
机构：
[1] Payame Noor Univ, Dept Phys, Tehran 193954697, Iran
来源：
PHYSICS LETTERS B | 2009年 / 682卷 / 01期
关键词：
Modified gravity; Extra force; Gauss-Bonnet gravity; DARK ENERGY;
D O I：
10.1016/j.physletb.2009.10.089
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The dynamics of test particles in f(g) modified Gauss-Bonnet gravity is investigated. It is shown that in f(g) gravity models with non-minimal coupling to matter, particles experience an extra force normal to their four-velocities and as a result move along non-geodesic world-lines. The explicit form of the extra force depends oil the function of the Gauss-Bonnet term included in coupling term. The effects of this force oil the relative accelerations of particles are studied. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：89 / 92
页数：4
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