Scalar field in the Jordan-Brans-Dicke Theory and Dark Energy

被引：0

作者：

Chubaryan, E. V. ^{[1
]}

Avagyan, R. M. ^{[1
]}

Harutunyan, G. G. ^{[1
]}

Piloyan, A. S. ^{[1
]}

机构：

[1] Yerevan State Univ, Fac Phys, Alex Manoogian 1, Yerevan 0025, Armenia

来源：

INVISIBLE UNIVERSE INTERNATIONAL CONFERENCE | 2010年 / 1241卷

关键词：

Relativity and gravitation; Dark energy; Cosmology; Particle-theory and field-theory models of the early Universe (including cosmic pancakes; cosmic strings; chaotic phenomena; inflationary universe; etc); Observational cosmology (including Hubble constant; distance scale; cosmological constant; early Universe; Mathematical and relativistic aspects of cosmology;

D O I：

10.1063/1.3462622

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The article considers cosmological models in the framework of the Jordan-Brans-Dicke (JBD) theory in the Einstein frame. It separately discusses the cases of scalar field domination, as well as the presence of cosmological constant Lambda, with matter, which is described by the barometric equation of state P = alpha epsilon (P-pressure, e-energy density of matter). The analysis of obtained results is carried out in the light of modern observational data. It is shown that the contribution of the scalar field and Lambda-term (Lambda > 0) in the case of q = -1/2 (q = (a) double over dot a/(a) over dot(2) decelerating parameter) compensate each other, and the situation becomes like in Einstein's theory.

引用

页码：1216 / 1220

页数：5

共 50 条

[1] COMMENTS ON JORDAN-BRANS-DICKE SCALAR-FIELD THEORY OF GRAVITATION
LINDSTROM, U
[J]. NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-GENERAL PHYSICS RELATIVITY ASTRONOMY AND MATHEMATICAL PHYSICS AND METHODS, 1976, 32 (02): : 298 - 302
[2] Cosmological scalar in the Jordan-Brans-Dicke theory. I
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Harutyunyan, GH
Papoyan, VV
[J]. ASTROPHYSICS, 2005, 48 (03) : 381 - 388
[3] Cosmological Scalar in the Jordan-Brans-Dicke Theory. I
R. M. Avagian
G. H. Harutyunyan
V. V. Papoyan
[J]. Astrophysics, 2005, 48 : 381 - 388
[4] An essay on the Jordan-Brans-Dicke scalar-tensor theory of gravity
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[J]. PHYSICS OF PARTICLES AND NUCLEI, 2003, 34 : S91 - S120
[5] The Cosmological Scalar in the Jordan-Brans-Dicke Theory. II.
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G. H. Harutyunyan
[J]. Astrophysics, 2005, 48 : 532 - 538
[6] The cosmological scalar in the Jordan-Brans-Dicke theory. II.
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Harutyunyan, GH
[J]. ASTROPHYSICS, 2005, 48 (04) : 532 - 538
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del Campo, Sergio
Herrera, Ramon
Labrana, Pedro
[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2007, (11):
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[9] NUCLEOSYNTHESIS CONSTRAINTS ON AN EXTENDED JORDAN-BRANS-DICKE THEORY
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GUNDLACH, C
[J]. PHYSICAL REVIEW D, 1991, 43 (12): : 3873 - 3877
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