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Qiu, TT; Feng, KX; Qiu, TT (reprint author), Cent China Normal Univ, Inst Astrophys, Wuhan 430079, Hubei, Peoples R China.; Qiu, TT (reprint author), Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Hubei, Peoples R China.; Qiu, TT (reprint author), Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Hubei, Peoples R China.
Reheating mechanism of the curvaton with nonminimal derivative coupling to gravity
Source PublicationEUROPEAN PHYSICAL JOURNAL C
Language英语
AbstractIn this paper, we continue our study of the curvaton model with nonminimal derivative coupling (NDC) to Einstein gravity proposed in our previous work (Feng in Phys Lett B 729:99, 2014; Feng and Qiu in Phys Rev D 90(12):123508, 2014), focusing on the reheating mechanism. We found that according to whether the curvaton has or has not dominated the background after the end of inflation, it will have two different behaviors of evolution, which should be the general property of the curvaton with nonminimal couplings. This will cause two different parts of reheating, which goes on via the parametric resonance process. The reheating temperature is estimated for both cases in which reheating completes before and after curvaton domination, and the constraints are quite loose compared to that of overproduction of gravitinos. Finally we investigated the evolution of curvature perturbation during reheating. We have shown both analytically and numerically that the curvature perturbation will not blow up during the resonance process.
2017
Volume77Issue:10Pages:687
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1140/epjc/s10052-017-5275-x
Funding OrganizationNSFC [11405069] ; NSFC [11405069] ; NSFC [11405069] ; NSFC [11405069] ; 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/311006/21949
CollectionSCI期刊论文
Corresponding AuthorQiu, TT (reprint author), Cent China Normal Univ, Inst Astrophys, Wuhan 430079, Hubei, Peoples R China.; Qiu, TT (reprint author), Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Hubei, Peoples R China.; Qiu, TT (reprint author), Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Hubei, Peoples R China.
Recommended Citation
GB/T 7714
Qiu, TT,Feng, KX,Qiu, TT ,et al. Reheating mechanism of the curvaton with nonminimal derivative coupling to gravity[J]. EUROPEAN PHYSICAL JOURNAL C,2017,77(10):687.
APA Qiu, TT,Feng, KX,Qiu, TT ,Qiu, TT ,&Qiu, TT .(2017).Reheating mechanism of the curvaton with nonminimal derivative coupling to gravity.EUROPEAN PHYSICAL JOURNAL C,77(10),687.
MLA Qiu, TT,et al."Reheating mechanism of the curvaton with nonminimal derivative coupling to gravity".EUROPEAN PHYSICAL JOURNAL C 77.10(2017):687.
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