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Zhang, Yi; Zhang, Y , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China
Slow-roll and rapid-roll conditions in the spacelike vector field scenario
Source PublicationPHYSICAL REVIEW D
KeywordInflationary Universe Supernovae Cosmology Flatness Equation Horizon
AbstractIn this note we derive the slow-roll and rapid-roll conditions for the minimally and nonminimally coupled spacelike vector fields. The function f(B(2)) represents the nonminimal coupling effect between vector fields and gravity, the f=0 case is the minimal coupling case. For a clear comparison with the scalar field, we define a new function F=+/- B(2)/12+f(B(2)), where B(2)=A(mu)A(mu), A(mu) is the "comoving" vector field. With reference to the slow-roll and rapid-roll conditions, we find the small-field model is more suitable than the large-field model in the minimally coupled vector field case. As a nonminimal coupling example, the F=0 case just has the same slow-roll conditions as the scalar fields.
2009
ISSN1550-7998
Volume80Issue:4Pages:-
Subject AreaPhysics
Indexed BySCI
Funding OrganizationChinese Academy of Sciences; NSFC[10325525, 90403029] ; Chinese Academy of Sciences; NSFC[10325525, 90403029] ; Chinese Academy of Sciences; NSFC[10325525, 90403029] ; Chinese Academy of Sciences; NSFC[10325525, 90403029]
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5270
Collection理论物理所科研产出_SCI论文
Corresponding AuthorZhang, Y , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yi,Zhang, Y , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China. Slow-roll and rapid-roll conditions in the spacelike vector field scenario[J]. PHYSICAL REVIEW D,2009,80(4):-.
APA Zhang, Yi,&Zhang, Y , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.(2009).Slow-roll and rapid-roll conditions in the spacelike vector field scenario.PHYSICAL REVIEW D,80(4),-.
MLA Zhang, Yi,et al."Slow-roll and rapid-roll conditions in the spacelike vector field scenario".PHYSICAL REVIEW D 80.4(2009):-.
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