On the renormalization group perspective of alpha-attractors

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

ITP OpenIR > 理论物理所科研产出 > SCI论文

	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.
	On the renormalization group perspective of alpha-attractors
发表期刊	JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
语种	英语
关键词	Inflation Modified Gravity Physics Of The Early Universe Quantum Field Theory On Curved Space
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.
	2017
期号	10 页码:32
学科领域	Astronomy & Astrophysics ; Physics
DOI	http://dx.doi.org/10.1088/1475-7516/2017/10/032
引用统计
文献类型	期刊论文
条目标识符	http://ir.itp.ac.cn/handle/311006/21959
专题	理论物理所科研产出_SCI论文
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.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
On the renormalizati（256KB）			开放获取	--	请求全文