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题名: Two-field quintom models in the w-w
作者: 郭宗宽 ;  Piao, Yun-Song ;  Zhang, Xinmin ;  Zhang, Yuan-Zhong
刊名: PHYSICAL REVIEW D
出版日期: 2006
卷号: 74, 期号:12, 页码:-
关键词: EQUATION-OF-STATE ;  DARK ENERGY-MODEL ;  COSMOLOGICAL CONSTANT ;  PHANTOM COSMOLOGY ;  OSCILLATING QUINTOM ;  QUINTESSENCE ;  UNIVERSE ;  CONSTRAINTS ;  LAMBDA ;  FIELD
学科分类: Physics
通讯作者: Guo, ZK , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Grad Sch, Coll Phys Sci, Beijing 100049, Peoples R China; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China; CCAST, World Lab, Beijing 100080, Peoples R China
英文摘要: The w-w(') plane, defined by the equation of state parameter for the dark energy and its derivative with respect to the logarithm of the scale factor, is useful to the study of classifying the dynamical dark energy models. In this note, we examine the evolving behavior of the two-field quintom models with w crossing the w=-1 barrier in the w-w(') plane. We find that these models can be divided into two categories, type A quintom in which w changes from >-1 to <-1 and type B quintom in which w changes from <-1 to >-1 as the universe expands.
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5829
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Guo, Zong-Kuan,Piao, Yun-Song,Zhang, Xinmin,et al. Two-field quintom models in the w-w[J]. PHYSICAL REVIEW D,2006,74(12):-.
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