Gravitational energy in Brans-Dicke cosmological models

被引：1
|
作者：
Johri, VB [1 ]
Singh, GP
机构：
[1] Univ Lucknow, Dept Math & Astron, Lucknow 226007, Uttar Pradesh, India
[2] Visvesvaraya Reg Coll Engn, Dept Math, Nagpur, Maharashtra, India
来源：
PRAMANA-JOURNAL OF PHYSICS | 1999年 / 52卷 / 02期
关键词：
Brans-Dicke theory; gravitational energy; scalar field; expanding universe;
D O I：
10.1007/BF02831489
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The behaviour of gravitational energy and scalar field during the evolution of the universe within the framework of Brans-Dicke theory has been discussed. With help of the Landau-Lifshitz pseudo-tenser for the flat Friedmann-Robertson-Walker model, it is found that (i) the total energy of the universe is always zero, (ii) the Brans-Dicke scalar held for all omega greater than or equal to 0 contributes energy to the negative energy of gravitational field and this gets transferred to the vacuum energy which accelerates the expansion of the universe.
引用
收藏
页码：121 / 126
页数：6
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