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Primordial perturbation spectra from various expanding and contracting phases before the "bounce"
Po YS(朴云松); Piao, YS; Zhang, YZ
2004
发表期刊PHYSICAL REVIEW D
卷号70期号:4页码:43516
通讯作者Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China ; Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China ; CCAST, World Lab, Beijing 100080, Peoples R China ; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
文章类型Article
摘要In this paper we describe the evolution of various expanding and contracting phases before the "bounce" in Einstein frame. Focusing on the case of a single scalar field, in terms of the parameter w of the state equation, four different regions denoting different expanding and contracting phases are pointed out. We discuss possible scenarios generating the nearly scale-invariant spectrum and show that the inflation and other alternative scenarios recently proposed can be placed in different positions of these regions. Our work offers an interesting classification for the primordial perturbation spectra from various phases before the "bounce," which may have important implications for building an early universe scenario embedded in possible high-energy theories.
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.70.043516
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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:000223859700037
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240613
专题理论物理室
作者单位中国科学院高能物理研究所
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Po YS,Piao, YS,Zhang, YZ. Primordial perturbation spectra from various expanding and contracting phases before the "bounce"[J]. PHYSICAL REVIEW D,2004,70(4):43516.
APA 朴云松,Piao, YS,&Zhang, YZ.(2004).Primordial perturbation spectra from various expanding and contracting phases before the "bounce".PHYSICAL REVIEW D,70(4),43516.
MLA 朴云松,et al."Primordial perturbation spectra from various expanding and contracting phases before the "bounce"".PHYSICAL REVIEW D 70.4(2004):43516.
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