On curvature coupling and quintessence fine-tuning

ITP OpenIR > SCI期刊论文

	Gong, Yungui; Wang, Anzhong; Zhang, Yuan-Zhong; Gong, Y , Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China
	On curvature coupling and quintessence fine-tuning
Source Publication	EUROPHYSICS LETTERS
Keyword	Holographic Dark Energy Hubble-space-telescope Equation-of-state Cosmological Constant Cosmic Coincidence Scalar Field Model
Abstract	We discuss the phenomenological model in which the potential energy of the quintessence field depends linearly on the energy density of the spatial curvature. We find that the pressure of the scalar field takes a different form when the potential of the scalar field also depends on the scale factor and the energy momentum tensor of the scalar field can be expressed as the form of a perfect fluid. A general coupling is proposed to explain the current accelerating expansion of the Universe and solve the fine-tuning problem.
	2006
ISSN	0295-5075
Volume	74 Issue:5 Pages:930-936
Subject Area	Physics
Indexed By	SCI
Citation statistics
Document Type	期刊论文
Identifier	http://ir.itp.ac.cn/handle/311006/5983
Collection	SCI期刊论文
Corresponding Author	Gong, Y , Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China
Recommended Citation GB/T 7714	Gong, Yungui,Wang, Anzhong,Zhang, Yuan-Zhong,et al. On curvature coupling and quintessence fine-tuning[J]. EUROPHYSICS LETTERS,2006,74(5):930-936.
APA	Gong, Yungui,Wang, Anzhong,Zhang, Yuan-Zhong,&Gong, Y , Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China.(2006).On curvature coupling and quintessence fine-tuning.EUROPHYSICS LETTERS,74(5),930-936.
MLA	Gong, Yungui,et al."On curvature coupling and quintessence fine-tuning".EUROPHYSICS LETTERS 74.5(2006):930-936.

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