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	Cosmological evolution of "hessence" dark energy and avoidance of the big rip
	Wei, H; Cai, RG
刊名	Physical review d
	2005-12-01
卷号	72期号:12页码:10
ISSN号	1550-7998
DOI	10.1103/physrevd.72.123507
通讯作者	Wei, h(haowei@itp.ac.cn)
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.
WOS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 ; MODEL
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000234274900021
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2377614
专题	中国科学院大学
通讯作者	Wei, H
作者单位	1.Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Wei, H,Cai, RG. Cosmological evolution of "hessence" dark energy and avoidance of the big rip[J]. Physical review d,2005,72(12):10.
APA	Wei, H,&Cai, RG.(2005).Cosmological evolution of "hessence" dark energy and avoidance of the big rip.Physical review d,72(12),10.
MLA	Wei, H,et al."Cosmological evolution of "hessence" dark energy and avoidance of the big rip".Physical review d 72.12(2005):10.

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