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Primordial perturbation in Horava-Lifshitz cosmology
Piao, Yun-Song; Piao, YS , Chinese Acad Sci, Coll Phys Sci, Grad Sch, Beijing 100049, Peoples R China
2009
发表期刊PHYSICS LETTERS B
ISSN0370-2693
卷号681期号:1页码:1-4
摘要Recently, 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.
部门归属[Piao, YS] Chinese Acad Sci, Coll Phys Sci, Grad Sch, Beijing 100049, Peoples R China; [Piao, YS] Chinese Acad Sci, ITP, Kavli Inst Theoret Phys China, Beijing 100049, Peoples R China
学科领域Physics
资助者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] ; NSFC[10775180]; Scientific Research Fund of GUCAS[055101BM03]; CAS[KJCX3-SYW-N2]; National Basic Research Program of China[2010CB832800]
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资助者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] ; NSFC[10775180]; Scientific Research Fund of GUCAS[055101BM03]; CAS[KJCX3-SYW-N2]; National Basic Research Program of China[2010CB832800]
WOS记录号WOS:000271411000001
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被引频次:72[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/311006/5224
专题理论物理所1978-2010年知识产出
通讯作者Piao, YS , Chinese Acad Sci, Coll Phys Sci, Grad Sch, Beijing 100049, Peoples R China
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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[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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