STUDY OF SYMMETRY IN F(R) THEORY OF GRAVITY

被引：11
|
作者：
Sanyal, Abhik Kumar [1 ]
机构：
[1] Jangipur Coll, Dept Phys, Murshidabad 742213, India
来源：
MODERN PHYSICS LETTERS A | 2010年 / 25卷 / 31期
关键词：
F(R) theory of gravity; symmetry; cosmology; COSMOLOGICAL SOLUTIONS; INFLATION; NOETHER; DILATON; MODELS;
D O I：
10.1142/S0217732310033657
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
An action in which the Ricci scalar is non-minimally coupled with a scalar field and contains higher order curvature invariant terms carries a conserved current under certain conditions that decouples geometric part from the scalar field. The conserved current relates the pair of arbitrary coupling parameters f(phi) and omega(phi) with the gravitational field variable, where omega(phi) is the Brans-Dicke coupling parameter. The existence of such conserved current may be helpful to sketch the cosmological evolution from its early age till date in a single frame.
引用
收藏
页码：2667 / 2676
页数：10
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