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Zhang, Jingfei; Zhang, Xin; Liu, Hongya; Zhang, JF , Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China
Reconstructing generalized ghost condensate model with dynamical dark energy parametrizations and observational datasets
发表期刊MODERN PHYSICS LETTERS A
关键词Digital Sky Survey Equation-of-state Probe Wmap Observations Cosmological Constant Power-spectrum Accelerating Universe Coupled Quintessence Cosmic Coincidence Data Set Constraints
摘要Observations of high-redshift supernovae indicate that the universe is accelerating at the present stage, and we refer to the cause for this cosmic acceleration as "dark energy". In particular, the analysis of current data of type Ia supernovae (SNIa), cosmic large scale structure (LSS), and the cosmic microwave background (CMB) anisotropy implies that, with some possibility, the equation-of-state parameter of dark energy may cross the cosmological-constant boundary (w = -1) during the recent evolution stage. The model of "quintom" has been proposed to describe this w = -1 crossing behavior for dark energy. As a single-real-scalar-field model of dark energy, the generalized ghost condensate model provides us with a successful mechanism for realizing the quintom-like behavior. In this paper, we reconstruct the generalized ghost condensate model in the light of three forms of parametrization for dynamical dark energy, with the best-fit results of up-to-date observational data.
2008
ISSN0217-7323
卷号23期号:2页码:139-152
学科领域Physics
收录类别SCI
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被引频次:35[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5591
专题理论物理所科研产出_SCI论文
通讯作者Zhang, JF , Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China
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GB/T 7714
Zhang, Jingfei,Zhang, Xin,Liu, Hongya,et al. Reconstructing generalized ghost condensate model with dynamical dark energy parametrizations and observational datasets[J]. MODERN PHYSICS LETTERS A,2008,23(2):139-152.
APA Zhang, Jingfei,Zhang, Xin,Liu, Hongya,&Zhang, JF , Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China.(2008).Reconstructing generalized ghost condensate model with dynamical dark energy parametrizations and observational datasets.MODERN PHYSICS LETTERS A,23(2),139-152.
MLA Zhang, Jingfei,et al."Reconstructing generalized ghost condensate model with dynamical dark energy parametrizations and observational datasets".MODERN PHYSICS LETTERS A 23.2(2008):139-152.
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