On the renormalization group perspective of alpha-attractors
文献类型：期刊论文
| 作者 | 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
 |
| 出版日期 | 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 |
| 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. |
入库方式： OAI收割
来源：理论物理研究所
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