R-2 corrections to the cosmological dynamics of inflation in the Palatini formulation

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	R-2 corrections to the cosmological dynamics of inflation in the Palatini formulation
	Meng, XH; Wang, P; Meng, XH , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
刊名	CLASSICAL AND QUANTUM GRAVITY
	2004
卷号	21 期号:8 页码:2029-2036
关键词	Chaotic Inflation Scalar Field Equations Perturbations Evolution
ISSN号	0264-9381
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.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000221527700009
公开日期	2012-08-30
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/14089]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Meng, XH , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
推荐引用方式 GB/T 7714	Meng, XH,Wang, P,Meng, XH , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.. R-2 corrections to the cosmological dynamics of inflation in the Palatini formulation[J]. CLASSICAL AND QUANTUM GRAVITY,2004,21(8):2029-2036.
APA	Meng, XH,Wang, P,&Meng, XH , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China..(2004).R-2 corrections to the cosmological dynamics of inflation in the Palatini formulation.CLASSICAL AND QUANTUM GRAVITY,21(8),2029-2036.
MLA	Meng, XH,et al."R-2 corrections to the cosmological dynamics of inflation in the Palatini formulation".CLASSICAL AND QUANTUM GRAVITY 21.8(2004):2029-2036.