报告题目：Primordial Black Holes from R^2-gravity

报告人简介：

Name:ZHANG YINGLI （章颖理）

Birth: May, 5, 1983

Gender:Male

Address:東京都新宿区矢来町118 番地 溝井ビル303 号室

Mobile Phone:070-4424-1712

E-mail address:yingli@rs.tus.ac.jp

Current Affiliation:Tokyo University of Science

Title of Position:Postdoctoral Researcher

Year of Ph.D. 2013

Source of Ph.D. Kyoto University

报告摘要：

We study a model of inflation in which a scalar field is non-minimally coupled to Starobinsky’s R^2 gravity. The presence of the damped oscillations during the transition from the first to second stage of inflation causes enhancement and oscillation features in the power spectrum of the curvature perturbation. Assuming that the oscillations may be treated perturbatively, we calculate these features by using the δN formalism, and discuss its observational implications to primordial black hole formation.

Reference: JCAP 05 (2018) 042 [arXiv:1712.09896]

报告时间：2018年5月24日下午1：30