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Qiu, TT; Qiu, TT (reprint author), Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.; Qiu, TT (reprint author), Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.; Qiu, TT (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Dirac-Born-Infeld inflation model with kinetic coupling to Einstein gravity
Source PublicationPHYSICAL REVIEW D
Language英语
AbstractIn this paper, we study a new class of inflation models which generalize the Dirac-Born-Infeld (DBI) action with the addition of a nonminimal kinetic coupling (NKC) term. We dub this model as the new DBI inflation model. The NKC term does not bring a new dynamical degree of freedom, so the equations of motion remain of second order. However, with such coupling, the action is no longer linear with respect to the Einstein curvature term (R or G(mu nu)), which leads to a correction term of k(4) in the perturbations. The new DBI inflation model can be viewed as a theory beyond Horndeski. Without violating approximate scale invariance, such correction may lead to new effects on the inflationary spectra that can be tested by future observations.
2016
Volume93Issue:12Pages:123515
Subject AreaAstronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1103/PhysRevD.93.123515
Indexed BySCI
Funding OrganizationNSFC [11405069] ; NSFC [11405069] ; NSFC [11405069] ; NSFC [11405069] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y4KF131CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y4KF131CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y4KF131CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y4KF131CJ1] ; Open Innovation Fund of Key Laboratory of Quark and Lepton Physics (MOE), Central China Normal University [QLPL2014P01] ; Open Innovation Fund of Key Laboratory of Quark and Lepton Physics (MOE), Central China Normal University [QLPL2014P01] ; Open Innovation Fund of Key Laboratory of Quark and Lepton Physics (MOE), Central China Normal University [QLPL2014P01] ; Open Innovation Fund of Key Laboratory of Quark and Lepton Physics (MOE), Central China Normal University [QLPL2014P01]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21616
Collection理论物理所科研产出_SCI论文
Corresponding AuthorQiu, TT (reprint author), Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.; Qiu, TT (reprint author), Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.; Qiu, TT (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Qiu, TT,Qiu, TT ,Qiu, TT ,et al. Dirac-Born-Infeld inflation model with kinetic coupling to Einstein gravity[J]. PHYSICAL REVIEW D,2016,93(12):123515.
APA Qiu, TT,Qiu, TT ,Qiu, TT ,&Qiu, TT .(2016).Dirac-Born-Infeld inflation model with kinetic coupling to Einstein gravity.PHYSICAL REVIEW D,93(12),123515.
MLA Qiu, TT,et al."Dirac-Born-Infeld inflation model with kinetic coupling to Einstein gravity".PHYSICAL REVIEW D 93.12(2016):123515.
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