On the renormalization group perspective of alpha-attractors

doi:http://dx.doi.org/10.1088/1475-7516/2017/10/032

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	On the renormalization group perspective of alpha-attractors
	Narain, G; Narain, G (reprint author), Chinese Acad Sci, Kavli Inst Theoret Phys China, Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
刊名	JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
	2017
期号	10 页码:32
关键词	Inflation Modified Gravity Physics Of The Early Universe Quantum Field Theory On Curved Space
DOI	http://dx.doi.org/10.1088/1475-7516/2017/10/032
英文摘要	In this short paper we outline a recipe for the reconstruction of F(R) gravity starting from single field inflationary potentials in the Einstein frame. For simple potentials one can compute the explicit form of (R) whilst for more involved examples one gets a, parametric form of F(R). The F(R) reconstruction algorithm is used to study-various examples: power-law phi(n), exponential and alpha-attractors. In each case it is seen that for large R (corresponding to large value of inflaton field), F(R) similar to R-2 For the case of alpha-attractors F(R) similar to R-2 for all values of inflaton field (for all values of R) as alpha -> 0. For generic inflaton potential V(phi), it is seen that if V'/V -> 0 (for some phi) then the corresponding F(R) similar to R-2. We then study a-attractors in more detail using non-perturbative renormalisation group methods to analyse the reconstructed (R) It is seen that alpha -> 0 is an ultraviolet stable fixed point of the reriortualisation group trajectories.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21959]
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	Narain, G (reprint author), Chinese Acad Sci, Kavli Inst Theoret Phys China, Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Narain, G,Narain, G . On the renormalization group perspective of alpha-attractors[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2017(10):32.
APA	Narain, G,&Narain, G .(2017).On the renormalization group perspective of alpha-attractors.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(10),32.
MLA	Narain, G,et al."On the renormalization group perspective of alpha-attractors".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .10(2017):32.