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Li, LF; Cai, RG; Guo, ZK; Hu, B; Li, LF (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
Non-Gaussian features from the inverse volume corrections in loop quantum cosmology
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordBlack-hole Entropy Inflation Gravity Geometry Area Cmb
AbstractIn this paper we study the non-Gaussian features of the primordial fluctuations in loop quantum cosmology with the inverse volume corrections. The detailed analysis is performed in the single field slow-roll inflationary models. However, our results reflect the universal characteristics of bispectrum in loop quantum cosmology. The main corrections to the scalar bispectrum come from two aspects: one is the modifications to the standard Bunch-Davies vacuum, and the other is the corrections to the background dependent variables, such as slow-roll parameters. Our calculations show that the loop quantum corrections make f(NL) of the inflationary models increase 0.1%. Moreover, we find that two new shapes of non-Gaussian signal arise, which we name F-1 and F-2. The former gives a unique loop quantum feature, which is less correlated with the local, equilateral, and single types, while the latter is highly correlated with the local one.
2012
ISSN1550-7998
Volume86Issue:4Pages:44020
Subject AreaPhysics
Indexed BySCI
Funding OrganizationChinese Academy of Science [2010CB832805, 2010CB833004]; National Natural Science Foundation of China [10821504, 10975168, 11175225, 11035008] ; Chinese Academy of Science [2010CB832805, 2010CB833004]; National Natural Science Foundation of China [10821504, 10975168, 11175225, 11035008] ; Chinese Academy of Science [2010CB832805, 2010CB833004]; National Natural Science Foundation of China [10821504, 10975168, 11175225, 11035008] ; Chinese Academy of Science [2010CB832805, 2010CB833004]; National Natural Science Foundation of China [10821504, 10975168, 11175225, 11035008]
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15050
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLi, LF (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Li, LF,Cai, RG,Guo, ZK,et al. Non-Gaussian features from the inverse volume corrections in loop quantum cosmology[J]. PHYSICAL REVIEW D,2012,86(4):44020.
APA Li, LF,Cai, RG,Guo, ZK,Hu, B,&Li, LF .(2012).Non-Gaussian features from the inverse volume corrections in loop quantum cosmology.PHYSICAL REVIEW D,86(4),44020.
MLA Li, LF,et al."Non-Gaussian features from the inverse volume corrections in loop quantum cosmology".PHYSICAL REVIEW D 86.4(2012):44020.
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