【直播】【“早期宇宙与阿里原初引力波探测实验”线上论坛】Early Universe and AliCPT Forum

直播信息

报告题目

Early Universe and AliCPT Forum

报告人

Prof. Teruaki Suyama

报告时间

2022年6月15日（周三）15:00

直播二维码

报告人介绍

Teruaki Suyama is an associate professor at Tokyo Institute of Technology since 2018. He obtained his doctorate from Kyoto University in 2007, after which he did postdoctoral research at the University of Tokyo and Louvain University. Since 2012, he has been a faculty member at the Research Center for the Early Universe (U.Tokyo), until he was appointed the current position. His research interest is to (mainly theoretically) investigate the horizon of our understanding of cosmology and gravitational physics we could reach in the era of the gravitational-wave astronomy. He is a lover of Belgian beers.

报告摘要

Gravitational waves from the distant sources are gravitationally lensed during their propagation through the intervening matter inhomogeneities before arriving at detectors. In this talk, I first give an overview of the gravitational lensing of gravitational waves, followed by a proposal made in the literature that the variance of the lensed waveform can be used to extract information of the matter power spectrum at very small scales and of low-mass dark halos. I will then show that the variance of the amplitude fluctuation and that of the phase fluctuation of the lensed waveform obey a simple consistency relation irrespective of the shape of the matter power spectrum. I will discuss about conditions under which this relation can be violated and provide some potential applications of the relation.

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编辑：黄琦

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