Fluctuation with dust of de Sitter ground state of scalar-tensor gravity

An exact de Sitter solution of scalar-tensor gravity is found in our recent work, in which the non-minimal coupling scalar is rolling along a non-constant potential. Based on this solution, a dust-filled FRW universe is explored in frame of scalar-tensor gravity in this article. The effective dark e...

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Bibliographic Details
Published inScience China. Physics, mechanics & astronomy Vol. 57; no. 3; pp. 411 - 417
Main Authors Tang, YanKe, Zhang, HongSheng, Chen, ChiYi, Li, XinZhou
Format Journal Article
LanguageEnglish
Published Heidelberg Science China Press 01.03.2014
Springer Nature B.V
Subjects
Astronomy
China
Classical and Continuum Physics
Dark energy
Dust
Fluctuation
Gravitation
Mathematical analysis
Observations and Techniques
Physics
Physics and Astronomy
Quintessence (cosmology)
Scalars
Sole
Tensors
Universe
基态
宇宙探索
张量
标量
波动
灰尘
西特
重力
phantom divide
scalar tensor gravity
dark energy
de Sitter space
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Summary:An exact de Sitter solution of scalar-tensor gravity is found in our recent work, in which the non-minimal coupling scalar is rolling along a non-constant potential. Based on this solution, a dust-filled FRW universe is explored in frame of scalar-tensor gravity in this article. The effective dark energy induced by the sole non-minimal scalar can be quintessence-like, phantom-like, and more significantly, can cross the phantom divide. The rich and varied properties of scalar-tensor gravity even with only one scalar is shown.
Bibliography:scalar tensor gravity, de Sitter space, dark energy, phantom divide
11-5000/N
An exact de Sitter solution of scalar-tensor gravity is found in our recent work, in which the non-minimal coupling scalar is rolling along a non-constant potential. Based on this solution, a dust-filled FRW universe is explored in frame of scalar-tensor gravity in this article. The effective dark energy induced by the sole non-minimal scalar can be quintessence-like, phantom-like, and more significantly, can cross the phantom divide. The rich and varied properties of scalar-tensor gravity even with only one scalar is shown.
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ISSN:1674-7348
1869-1927
DOI:10.1007/s11433-014-5395-3