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题名: Scalar graviton in the healthy extension of Horava-Lifshitz theory
作者: Cai, RG ;  Hu, B ;  Zhang, HB
刊名: PHYSICAL REVIEW D
出版日期: 2011
卷号: 83, 期号:8, 页码:84009
关键词: BLACK-HOLES ;  COSMOLOGY
学科分类: Physics
通讯作者: Cai, RG (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
部门归属: [Cai, Rong-Gen; Hu, Bin; Zhang, Hong-Bo] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
英文摘要: In this note we study the linear dynamics of scalar graviton in a de Sitter background in the infrared limit of the healthy extension of Horava-Lifshitz gravity with the dynamical critical exponent z = 3. Both our analytical and numerical results show that the nonzero Fourier modes of scalar graviton oscillate with an exponentially damping amplitude on the subhorizon scale, while on the superhorizon scale, the phases are frozen and they approach to some asymptotic values. In addition, as the case of the nonzero modes on superhorizon scale, the zero mode also initially decays exponentially and then approaches to an asymptotic constant value.
资助者: National Natural Science Foundation of China [10821504, 10975168, 11035008]; Ministry of Science and Technology of China [2010CB833004]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000289194600005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14372
Appears in Collections:理论物理所2011年知识产出_期刊论文

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Recommended Citation:
Cai, RG,Hu, B,Zhang, HB. Scalar graviton in the healthy extension of Horava-Lifshitz theory[J]. PHYSICAL REVIEW D,2011,83(8):84009.
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