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题名: Large primordial trispectra in general single field inflation
作者: Chen, Xingang ;  Hu, Bin ;  Huang, Min-xin ;  Shiu, Gary ;  Wang, Yi
刊名: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
出版日期: 2009
期号: 8, 页码:-
关键词: NON-GAUSSIANITY ;  K-INFLATION ;  PERTURBATIONS
学科分类: Physics
通讯作者: Chen, XG , MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA
部门归属: [Chen, XG] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA; [Hu, B; Wang, Y] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China; [Huang, MX] CERN, Dept Phys, Div Theory, CH-1211 Geneva, Switzerland; [Shiu, G] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA; [Shiu, G] Inst Adv Study, Sch Nat Sci, Princeton, NJ 08540 USA
英文摘要: We compute the large scalar four-point correlation functions in general single field inflation models, where the inflaton Lagrangian is an arbitrary function of the inflaton and its first derivative. We find that the leading order trispectra have four different shapes determined by three parameters. We study features in these shapes that can be used to distinguish among themselves, and between them and the trispectra of the local form. For the purpose of data analyses, we give two simple representative forms for these "equilateral trispectra". We also study the effects on the trispectra if the initial state of inflation deviates from the standard Bunch-Davies vacuum.
资助者: US Department of Energy[DEFG02-05ER41360]; Chinese Academy of Sciences[KJCX3-SYW-N2]; NSFC[10821504, 10525060, 10535060/A050207]; NSF CAREER[PHY-0348093]; DOE[DE-FG-02-95ER40896]; Research Corporation; University of Wisconsin; John Simon Guggenheim Memorial Foundation Fellowship; Ambrose Monell Foundation; 973 project[2007CB815401]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000270036800008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5272
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Chen, Xingang,Hu, Bin,Huang, Min-xin,et al. Large primordial trispectra in general single field inflation[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2009(8):-.
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