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Huang, QG; Wang, Y; Huang, QG (reprint author), Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Large local non-Gaussianity from general ultra slow-roll inflation
发表期刊JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
语种英语
关键词Universe Flatness Horizon
摘要We investigate the local non-Gaussian signatures of general ultra slow-roll inflation. The bispectrum and the trispectrum are calculated with general initial conditions. We show that the prediction of local non-Gaussianity is robust against generalizing the Bunch-Davies vacuum in such a model. Even though the bispectrum in this model is tightly constrained by Planck, the trispectrum can still be large enough to be detected by future cosmological observations potentially. We also show that the Suyama-Yamaguchi relation is saturated in this scenario.
2013
ISSN1475-7516
期号6页码:35
学科领域Physics
收录类别SCI
项目资助者Knowledge Innovation Program of Chinese Academy of Science; NSFC [10821504]; Kavli Institute for the Physics and Mathematics of the Universe (WPI) ; Knowledge Innovation Program of Chinese Academy of Science; NSFC [10821504]; Kavli Institute for the Physics and Mathematics of the Universe (WPI) ; Knowledge Innovation Program of Chinese Academy of Science; NSFC [10821504]; Kavli Institute for the Physics and Mathematics of the Universe (WPI) ; Knowledge Innovation Program of Chinese Academy of Science; NSFC [10821504]; Kavli Institute for the Physics and Mathematics of the Universe (WPI)
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被引频次:12[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/311006/15349
专题理论物理所科研产出_SCI论文
通讯作者Huang, QG (reprint author), Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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GB/T 7714
Huang, QG,Wang, Y,Huang, QG . Large local non-Gaussianity from general ultra slow-roll inflation[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2013(6):35.
APA Huang, QG,Wang, Y,&Huang, QG .(2013).Large local non-Gaussianity from general ultra slow-roll inflation.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(6),35.
MLA Huang, QG,et al."Large local non-Gaussianity from general ultra slow-roll inflation".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .6(2013):35.
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