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题名: Spectral index and running of g(NL) from an isocurvature scalar field
作者: Huang, QG
刊名: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
出版日期: 2011
期号: 4, 页码:10
关键词: NON-GAUSSIANITY ;  INFLATION ;  PERTURBATIONS
学科分类: Physics
通讯作者: Huang, QG (reprint author), Chinese Acad Sci, Kavli Inst Theoret Phys China, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China.
部门归属: Chinese Acad Sci, Kavli Inst Theoret Phys China, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
英文摘要: It is possible that the primordial non-Gaussianity is dominated by the higher order terms, such as that set by g(NL), not f(NL). In this paper we re-derive the spectral index and work out the running of g(NL) from a single isocurvature scalar field. The scale dependences of non-Gaussianity parameters are detectable if the mass of isocurvature field is not too small compared to the Hubble parameter during inflation. In addition, we also apply our results to investigate the curvaton model with near quadratic potential in detail.
资助者: Chinese Academy of Science; NSFC
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000291259000010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14377
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Recommended Citation:
Huang, QG. Spectral index and running of g(NL) from an isocurvature scalar field[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2011(4):10.
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