IHEP OpenIR  > 理论物理室
Perturbations of the quintom models of dark energy and the effects on observations
Zhao GB(赵公博); Xia JQ(夏俊卿); Feng B(冯波); Zhang XM(张新民); Zhao, GB; Xia, JQ; Li, MZ; Feng, B; Zhang, XM
2005
发表期刊PHYSICAL REVIEW D
卷号72期号:12页码:123515
通讯作者Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; Inst Theoret Phys, D-69120 Heidelberg, Germany
文章类型Review
摘要We study in this paper the perturbations of the quintom dark energy model and the effects of quintom perturbations on the current observations. Quintom describes a scenario of dark energy where the equation of state gets across the cosmological constant boundary w = -1 during evolution. We present a new method to show that the conventional dark energy models based on a single k-essence field and perfect fluid cannot act as the quintom due to the singularities and classical instabilities of perturbations around w= -1. One needs to add extra degrees of freedom for successful quintom model building. There are no singularities or classical instabilities in perturbations of realistic quintom models and they are potentially distinguishable from the cosmological constant. Basing on the realistic quintom models in this paper we provide one way to include the perturbations for dark energy models with parametrized equation of state across -1. Compared with those assuming no dark energy perturbations, we find that the parameter space which allows the equation of state to get across -1 will be enlarged, in general, when including the perturbations.
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.72.123515
URL查看原文
语种英语
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000234274900029
引用统计
被引频次:173[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240980
专题理论物理室
粒子天体物理中心
多学科研究中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Zhao GB,Xia JQ,Feng B,et al. Perturbations of the quintom models of dark energy and the effects on observations[J]. PHYSICAL REVIEW D,2005,72(12):123515.
APA 赵公博.,夏俊卿.,冯波.,张新民.,Zhao, GB.,...&Zhang, XM.(2005).Perturbations of the quintom models of dark energy and the effects on observations.PHYSICAL REVIEW D,72(12),123515.
MLA 赵公博,et al."Perturbations of the quintom models of dark energy and the effects on observations".PHYSICAL REVIEW D 72.12(2005):123515.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
9963.pdf(1695KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[赵公博]的文章
[夏俊卿]的文章
[冯波]的文章
百度学术
百度学术中相似的文章
[赵公博]的文章
[夏俊卿]的文章
[冯波]的文章
必应学术
必应学术中相似的文章
[赵公博]的文章
[夏俊卿]的文章
[冯波]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。