报 告 人：王赛
时 间：2019年05月05日（星期日）下午14:00
地 点：物理学院LE201
邀 请 人：李昕
报告摘要：
For a variety of on-going and planned gravitational-wave experiments, we study expected constraints on the fraction of primordial black holes in dark matter by evaluating the energy-density spectra of two kinds of gravitational-wave backgrounds. The first one is produced from an incoherent superposition of gravitational waves emitted from coalescences of all the binary primordial black holes. The second one is induced through non-linear mode couplings of large primordial curvature perturbations inevitably associated with the generation of primordial black holes in the early Universe. We mainly focus on the primordial black holes with their masses which are smaller than one solar mass, since they are not expected to be of a stellar origin.
报告人介绍：
王赛，华中科技大学本科，中科院高能物理研究所博士。曾先后于中科院理论物理研究所、香港中文大学做博士后研究，现在日本高能加速器研究机构（KEK）做博士后研究。主要从事宇宙学、引力理论等领域的研究，目前主要关注引力波、21cm线等研究方向。
