Inflationary Phase in a Generalized Brans-Dicke Theory

被引：3

作者：

Berman, Marcelo S. ^{[1
]}

Trevisan, Luis A. ^{[2
]}

机构：

[1] Inst Albert Einstein Latinamer, BR-80730440 Curitiba, PR, Brazil

[2] Univ Estadual Ponta Grossa, BR-84010330 Ponta Grossa, PR, Brazil

来源：

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2009年 / 48卷 / 07期

关键词：

Inflation; Brans-Dicke; Scalar-tensor; Cosmology; Coupling "constant; Cosmological "constant;

D O I：

10.1007/s10773-009-9965-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We find a solution for exponential inflation in a Brans-Dicke generalized model, where the coupling "constant" is variable. While in General Relativity the equation of state is p=-rho, here we find p=alpha rho, where alpha <-2/3. The negativity of cosmic pressure implies acceleration of the expansion, even with I >< 0.

引用

页码：1929 / 1932

页数：4

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