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	Cosmological evolution of "hessence" dark energy and avoidance of the big rip
	Wei, H; Cai, RG; Wei, H , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
刊名	PHYSICAL REVIEW D
	2005
卷号	72期号:12页码:-
关键词	Digital Sky Survey High-redshift Supernovae Probe Wmap Observations Hubble-space-telescope Equation-of-state Accelerating Universe o(n) Symmetry Data Release Constant Gravity
ISSN号	1550-7998
英文摘要	Recently, many dark energy models whose equation-of-state parameter can cross the phantom divide w(de)=-1 have been proposed. In a previous paper [H. Wei, R. G. Cai, and D. F. Zeng, Classical Quantum Gravity 22, 3189 (2005)], we suggest such a model named hessence, in which a noncanonical complex scalar field plays the role of dark energy. In this work, the cosmological evolution of the hessence dark energy is investigated. We consider two cases: one is the hessence field with an exponential potential, and the other is with a (inverse) power-law potential. We separately investigate the dynamical system with four different interaction forms between hessence and background perfect fluid. It is found that the big rip never appears in the hessence model, even in the most general case, beyond particular potentials and interaction forms.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000234274900021
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/13714]
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	Wei, H , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Wei, H,Cai, RG,Wei, H , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. Cosmological evolution of "hessence" dark energy and avoidance of the big rip[J]. PHYSICAL REVIEW D,2005,72(12):-.
APA	Wei, H,Cai, RG,&Wei, H , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2005).Cosmological evolution of "hessence" dark energy and avoidance of the big rip.PHYSICAL REVIEW D,72(12),-.
MLA	Wei, H,et al."Cosmological evolution of "hessence" dark energy and avoidance of the big rip".PHYSICAL REVIEW D 72.12(2005):-.

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