Cosmic Evolution of Scalar Fields with Multiple Vacua: Generalized DBI and Quintessence

doi:10.1007/s10773-016-3076-x

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	Cosmic Evolution of Scalar Fields with Multiple Vacua: Generalized DBI and Quintessence
	Gao, Changjun 2,3; Shen, You-Gen 1
刊名	INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
	2016-10-01
卷号	55 期号:10 页码:4532-4544
关键词	Quintessence Dbi Field
ISSN号	0020-7748
DOI	10.1007/s10773-016-3076-x
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.
WOS研究方向	Physics
语种	英语
出版者	SPRINGER/PLENUM PUBLISHERS
WOS记录号	WOS:000383771400032
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/32775]
专题	中国科学院上海天文台
通讯作者	Gao, Changjun
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Key Lab Computat Astrophys, Natl Astron Observ, Beijing 100012, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Gao, Changjun,Shen, You-Gen. Cosmic Evolution of Scalar Fields with Multiple Vacua: Generalized DBI and Quintessence[J]. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS,2016,55(10):4532-4544.
APA	Gao, Changjun,&Shen, You-Gen.(2016).Cosmic Evolution of Scalar Fields with Multiple Vacua: Generalized DBI and Quintessence.INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS,55(10),4532-4544.
MLA	Gao, Changjun,et al."Cosmic Evolution of Scalar Fields with Multiple Vacua: Generalized DBI and Quintessence".INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS 55.10(2016):4532-4544.