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Piao, Yun-Song; Piao, YS , Chinese Acad Sci, Coll Phys Sci, Grad Sch, Beijing 100049, Peoples R China
Primordial perturbation in Horava-Lifshitz cosmology
Source PublicationPHYSICS LETTERS B
AbstractRecently, Horava has proposed a renormalizable theory of gravity with critical exponent z = 3 in the UV. This proposal might imply that the scale invariant primordial perturbation can be generated in any expansion of early universe with a similar to t(n) and n > 1/3, which, in this Letter, will be confirmed by solving the motion equation of perturbation mode on super sound horizon scale for any background evolution of early universe. It is found that if enough efolding number of primordial perturbation suitable for observable universe is required, then n I needs to be satisfied, unless the scale of UV regime is quite low. However, the possible UV completeness of HL gravity helps to relax this bound. (C) 2009 Elsevier ON. All rights reserved.
2009
ISSN0370-2693
Volume681Issue:1Pages:1-4
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNSFC[10775180]; Scientific Research Fund of GUCAS[055101BM03]; CAS[KJCX3-SYW-N2]; National Basic Research Program of China[2010CB832800] ; NSFC[10775180]; Scientific Research Fund of GUCAS[055101BM03]; CAS[KJCX3-SYW-N2]; National Basic Research Program of China[2010CB832800] ; NSFC[10775180]; Scientific Research Fund of GUCAS[055101BM03]; CAS[KJCX3-SYW-N2]; National Basic Research Program of China[2010CB832800] ; NSFC[10775180]; Scientific Research Fund of GUCAS[055101BM03]; CAS[KJCX3-SYW-N2]; National Basic Research Program of China[2010CB832800]
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Cited Times:72[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5224
Collection理论物理所科研产出_SCI论文
Corresponding AuthorPiao, YS , Chinese Acad Sci, Coll Phys Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Piao, Yun-Song,Piao, YS , Chinese Acad Sci, Coll Phys Sci, Grad Sch, Beijing 100049, Peoples R China. Primordial perturbation in Horava-Lifshitz cosmology[J]. PHYSICS LETTERS B,2009,681(1):1-4.
APA Piao, Yun-Song,&Piao, YS , Chinese Acad Sci, Coll Phys Sci, Grad Sch, Beijing 100049, Peoples R China.(2009).Primordial perturbation in Horava-Lifshitz cosmology.PHYSICS LETTERS B,681(1),1-4.
MLA Piao, Yun-Song,et al."Primordial perturbation in Horava-Lifshitz cosmology".PHYSICS LETTERS B 681.1(2009):1-4.
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