Kaluza-Klein Type Cosmological Model of Early Universe with Variable Cosmological Term Λ: Kinematic Tests

被引：4

作者：

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

Kamdi, Vaishali ^{[1
]}

机构：

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

来源：

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2009年 / 48卷 / 11期

关键词：

Early universe; Cosmology; Cosmological constant; Inflationary phase; Radiation-dominated phase; SCALE-COVARIANT THEORY; BRANS-DICKE COSMOLOGY; ASTROPHYSICAL APPLICATIONS; UNIFIED DESCRIPTION; CONSTANT PROBLEM; DARK ENERGY; CONSEQUENCES; GRAVITATION; VACUUM; DIMENSIONS;

D O I：

10.1007/s10773-009-0114-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Kaluza-Klein type cosmological model of universe are consider with variable Lambda term in the presence of perfect fluid. We obtained exact solution of the field equations by using gamma law equation of state p = (gamma - 1)rho, in which parameter gamma depends on the scale factor R proposed by Carvalho ( Int. J. Theor. Phys. 35: 2019, 1996). A unified description of early universe is presented with the assumption Lambda = beta H(2) in which inflationary phase is followed by radiation dominated phase. The various physical aspects of the cosmological models are also discussed. Analytic expressions for the look back time, proper distance, luminosity distance and angular diameter distance are derived and their meaning discussed in detail in the framework of higher dimensional space time.

引用

页码：3147 / 3157

页数：11

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