Early universe with variable cosmological constants in higher dimensional space time

被引：0

作者：

Khadekar, G. S. ^{[1
]}

Kondawar, Gopal L. ^{[1
]}

Ozel, Cenap ^{[2
]}

机构：

[1] Rashtrasant Tukadoji Maharaj Nagpur Univ, Dept Math, Nagpur 440033, Maharashtra, India

[2] Abant Izzet Baysal Univ, Dept Math, TR-14285 Golkoy Bolu, Turkey

来源：

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2008年 / 47卷 / 07期

关键词：

early universe; gravitational and cosmological constants;

D O I：

10.1007/s10773-007-9629-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The field equations with variable cosmological and gravitational constants are consider in the presence of perfect fluid for Kaluza-Klein type cosmological model. The exact solutions of the field equations are obtained by using the gamma law equation of state p = (gamma - 1)rho in which the parameter gamma depends on scale factor R. The functional form of gamma(R) is used to analyze a wide range of cosmological solution at early universe for two phases in cosmic history: inflationary phase and radiation dominated phase. The corresponding physical interpretation of cosmological solution are also discussed in the framework of higher dimensional space time.

引用

页码：1844 / 1852

页数：9