ITP OpenIR  > 理论物理所1978-2010年知识产出
Quasi-single field inflation and non-Gaussianities
Chen, Xingang; Wang, Yi; Chen, XG , Univ Cambridge, Dept Appl Math & Theoret Phys, Ctr Theoret Cosmol, Wilberforce Rd, Cambridge CB3 0WA, England
2010
发表期刊JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
ISSN1475-7516
期号4页码:-
摘要In quasi-single field inflation models, massive isocurvature modes, that are coupled to the inflaton and have mass of order the Hubble parameter, can have nontrivial impacts on density perturbations, especially non-Gaussianities. We study a simple example of quasi-single field inflation in terms of turning inflaton trajectory. Large bispectra with a one-parameter family of novel shapes arise, lying between the well-known local and equilateral shape. The trispectra can also be very large and its magnitude t(NL) can be much larger than f(NL)(2).
部门归属[Chen, XG] Univ Cambridge, Dept Appl Math & Theoret Phys, Ctr Theoret Cosmol, Cambridge CB3 0WA, England; [Chen, XG] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA; [Wang, Y] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada; [Wang, Y] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
关键词Expectation Value Formalism Parameter f(Nl) K-inflation Perturbations Scenario Flatness Universe Curvaton Horizon
学科领域Physics
资助者Stephen Hawking advanced fellowship; US DOE[DEFG02-05ER41360]; NSERC; IPP postdoctoral fellowship ; Stephen Hawking advanced fellowship; US DOE[DEFG02-05ER41360]; NSERC; IPP postdoctoral fellowship ; Stephen Hawking advanced fellowship; US DOE[DEFG02-05ER41360]; NSERC; IPP postdoctoral fellowship ; Stephen Hawking advanced fellowship; US DOE[DEFG02-05ER41360]; NSERC; IPP postdoctoral fellowship
URL查看原文
收录类别SCI
资助者Stephen Hawking advanced fellowship; US DOE[DEFG02-05ER41360]; NSERC; IPP postdoctoral fellowship ; Stephen Hawking advanced fellowship; US DOE[DEFG02-05ER41360]; NSERC; IPP postdoctoral fellowship ; Stephen Hawking advanced fellowship; US DOE[DEFG02-05ER41360]; NSERC; IPP postdoctoral fellowship ; Stephen Hawking advanced fellowship; US DOE[DEFG02-05ER41360]; NSERC; IPP postdoctoral fellowship
WOS记录号WOS:000277684600006
引用统计
被引频次:179[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5138
专题理论物理所1978-2010年知识产出
通讯作者Chen, XG , Univ Cambridge, Dept Appl Math & Theoret Phys, Ctr Theoret Cosmol, Wilberforce Rd, Cambridge CB3 0WA, England
推荐引用方式
GB/T 7714
Chen, Xingang,Wang, Yi,Chen, XG , Univ Cambridge, Dept Appl Math & Theoret Phys, Ctr Theoret Cosmol, Wilberforce Rd, Cambridge CB3 0WA, England. Quasi-single field inflation and non-Gaussianities[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2010(4):-.
APA Chen, Xingang,Wang, Yi,&Chen, XG , Univ Cambridge, Dept Appl Math & Theoret Phys, Ctr Theoret Cosmol, Wilberforce Rd, Cambridge CB3 0WA, England.(2010).Quasi-single field inflation and non-Gaussianities.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(4),-.
MLA Chen, Xingang,et al."Quasi-single field inflation and non-Gaussianities".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .4(2010):-.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Quasi-single field i(753KB) 开放获取使用许可请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Chen, Xingang]的文章
[Wang, Yi]的文章
[Chen, XG , Univ Cambridge, Dept Appl Math & Theoret Phys, Ctr Theoret Cosmol, Wilberforce Rd, Cambridge CB3 0WA, England]的文章
百度学术
百度学术中相似的文章
[Chen, Xingang]的文章
[Wang, Yi]的文章
[Chen, XG , Univ Cambridge, Dept Appl Math & Theoret Phys, Ctr Theoret Cosmol, Wilberforce Rd, Cambridge CB3 0WA, England]的文章
必应学术
必应学术中相似的文章
[Chen, Xingang]的文章
[Wang, Yi]的文章
[Chen, XG , Univ Cambridge, Dept Appl Math & Theoret Phys, Ctr Theoret Cosmol, Wilberforce Rd, Cambridge CB3 0WA, England]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。