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Primordial trispectrum from entropy perturbations in multifield DBI model
Gao, Xian; Hu, Bin; Gao, X , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China
2009
发表期刊JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
ISSN1475-7516
期号8页码:-
摘要We investigate the primordial trispectra of the general multifield DBI inflationary model. In contrast with the single field model, the entropic modes can source the curvature perturbations on the super horizon scales, so we calculate the contributions from the interaction of four entropic modes mediating one adiabatic mode to the trispectra, at the large transfer limit (T(RS) >> 1). We obtained the general form of the 4-point correlation functions, plotted the shape diagrams in two specific momenta configurations, "equilateral configuration" and "specialized configuration". Our figures showed that we can easily distinguish the two different momenta configurations.
部门归属[Gao, X; Hu, B] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
关键词Non-gaussianity K-inflation
学科领域Physics
资助者Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401]
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收录类别SCI
资助者Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; National Natural Science Foundation of China[10821504, 10525060]; NSFC[10821504, 10535060/A050207]; Ministry of Science and Technology 973 program[2007CB815401]
WOS记录号WOS:000270036800012
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被引频次:33[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/311006/5273
专题理论物理所SCI论文
通讯作者Gao, X , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China
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Gao, Xian,Hu, Bin,Gao, X , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China. Primordial trispectrum from entropy perturbations in multifield DBI model[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2009(8):-.
APA Gao, Xian,Hu, Bin,&Gao, X , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China.(2009).Primordial trispectrum from entropy perturbations in multifield DBI model.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(8),-.
MLA Gao, Xian,et al."Primordial trispectrum from entropy perturbations in multifield DBI model".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .8(2009):-.
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