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题名: Cosmic Evolution of Scalar Fields with Multiple Vacua: Generalized DBI and Quintessence
作者: Gao, CJ ;  Shen, YG
刊名: INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
出版日期: 2016
卷号: 55, 期号:10, 页码:4532-4544
关键词: Quintessence ;  DBI field
学科分类: Physics
DOI: http://dx.doi.org/10.1007/s10773-016-3076-x
通讯作者: Gao, CJ (reprint author), Chinese Acad Sci, Key Lab Computat Astrophys, Natl Astron Observ, Beijing 100012, Peoples R China. ;  Gao, CJ (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: We find a method to rewrite the equations of motion of scalar fields, generalized DBI field and quintessence, in the autonomous form for arbitrary scalar potentials. With the aid of this method, we explore the cosmic evolution of generalized DBI field and quintessence with the potential of multiple vacua. Then we find that the scalars are always frozen in the false or true vacuum in the end. Compared to the evolution of quintessence, the generalized DBI field has more times of oscillations around the vacuum of the potential. The reason for this point is that, with the increasing of speed , the friction term of generalized DBI field is greatly decreased. Thus the generalized DBI field acquires more times of oscillations.
类目[WOS]: Physics, Multidisciplinary
关键词[WOS]: COSMOLOGICAL SCALING SOLUTIONS ;  CONSTANT ;  POTENTIALS ;  UNIVERSE ;  FATE
收录类别: SCI
项目资助者: Chinese MoST 863 program [2012AA121701] ;  NSFC [11373030, 10973014, 11373020, 11465012]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21520
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Gao, CJ,Shen, YG. Cosmic Evolution of Scalar Fields with Multiple Vacua: Generalized DBI and Quintessence[J]. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS,2016,55(10):4532-4544.
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