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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
Source PublicationPHYSICAL REVIEW D
KeywordDigital Sky Survey High-redshift Supernovae Probe Wmap Observations Hubble-space-telescope Equation-of-state Accelerating Universe o(n) Symmetry Data Release Constant Gravity
AbstractRecently, 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.
2005
ISSN1550-7998
Volume72Issue:12Pages:-
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13714
Collection理论物理所科研产出_SCI期刊论文
Corresponding AuthorWei, H , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
Recommended Citation
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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