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题名: R-2 corrections to the cosmological dynamics of inflation in the Palatini formulation
作者: Meng, XH ;  Wang, P
刊名: CLASSICAL AND QUANTUM GRAVITY
出版日期: 2004
卷号: 21, 期号:8, 页码:2029-2036
关键词: CHAOTIC INFLATION ;  SCALAR FIELD ;  EQUATIONS ;  PERTURBATIONS ;  EVOLUTION
学科分类: Physics
通讯作者: Meng, XH , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
部门归属: Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
英文摘要: We investigate the corrections to the inflationary cosmological dynamics due to a R-2 term in the Palatini formulation which may arise as quantum corrections to the effective Lagrangian in early universe. We found that the standard Friedmann equation will not be changed when the scalar field is in the potential energy dominated era. However, in the kinetic energy dominated era, the standard Friedmann equation will be modified and in the case of a closed and flat universe, the modified Friedmann equation will automatically require that the initial kinetic energy density of the scalar field must be in sub-Planckian scale.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000221527700009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14089
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Meng, XH,Wang, P. R-2 corrections to the cosmological dynamics of inflation in the Palatini formulation[J]. CLASSICAL AND QUANTUM GRAVITY,2004,21(8):2029-2036.
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