On curvature coupling and quintessence fine-tuning

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	On curvature coupling and quintessence fine-tuning
	Gong, Yungui; Wang, Anzhong; Zhang, Yuan-Zhong; Gong, Y , Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China
刊名	EUROPHYSICS LETTERS
	2006
卷号	74 期号:5 页码:930-936
关键词	Holographic Dark Energy Hubble-space-telescope Equation-of-state Cosmological Constant Cosmic Coincidence Scalar Field Model
ISSN号	0295-5075
英文摘要	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.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000238029500027
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5983]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Gong, Y , Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China
推荐引用方式 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.