DILATON COSMOLOGY

被引：0

作者：

Huang, Z. G. ^{[1
]}

Fang, W. ^{[2
,4
]}

Lu, H. Q. ^{[3
,4
]}

机构：

[1] Huaihai Inst Technol, Sch Sci, Lianyungang 222005, Jiangsu Prov, Peoples R China

[2] Shanghai Normal Univ, Dept Phys, Shanghai, Peoples R China

[3] Shanghai Univ, Dept Phys, Shanghai, Peoples R China

[4] Shanghai Key Lab Astrophys, Shanghai, Peoples R China

来源：

MODERN PHYSICS LETTERS A | 2010年 / 25卷 / 40期

关键词：

Dilaton; Brans-Dicke theory; Einstein frame; Jordan frame; BRANS-DICKE THEORY; INFLATION; QUINTESSENCE; MODEL;

D O I：

10.1142/S0217732310034353

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In Brans-Dicke gravitational theory, an analytical accelerating expansion solution of the Universe is found at the dilaton dominated epoch. Both Einstein frame (EF) and Jordan frame (JF) are applied. We consider the form of exponential potential of dilaton field in EF while we consider the power law potential in JF. In matter and dilaton coexisting epoch, only the decelerating expansion solution without potential is considered with experimental constraint alpha(2) < 0.001. If the power law potential of dilaton field is applied in JF, some authors found the dilaton field can act as quintessence based numerical method. 1 We find that the influence of dilaton will not change the evolutionary law of density perturbation of baryon matter.

引用

页码：3395 / 3407

页数：13

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