报告摘要

The baryon asymmetry in the universe and the nature of dark matter remain puzzling problems despite the fact

that their abundances have been measured very precisely. Baryon asymmetry generation during a first order

electroweak phase transition is a very popular mechanism, and at the same time is associated with the

production of a stochastic background of gravitational waves, which provides a new method of probing the Higgs

potential, in complementarity to direct measurements at the colliders. The remaining majority of matter is dark,

in the sense that it interacts only gravitationally or very weakly with the standard model particles. Since its

nature remains elusive, many species have been proposed and are being actively searched for, such as the weakly

interacting massive particles, the ultralight wave-like dark matter, primordial black holes and more exotically

the boson stars. In this talk I will discuss the various ways that gravitational waves can be used in probing

the Higgs potential and in searching for the various species of dark matter, to demonstrate the power in a

nutshell gravitational waves can play in understanding our universe.

报告人

郭怀珂 (理论物理研究所)

报告人介绍

郭怀珂，目前研究的主要问题为暗物质、物质反物质不对称以及粒子物理中超出标准模型的新物理。尤其是利用引力波

作为新的工具对上述问题进行探索，如宇宙相变过程中引力波的理论研究和LIGO探测器上的实验搜寻、其与对撞机上对新物理

寻找的互补性研究，以及用引力波探测器探索各类暗物质的研究等。

2004-2008，山东师范大学，物理学学士

2008-2011，北京大学， 理论物理硕士，导师：赵光达 教授

2011-2013，University of Wisconsin-Madison,

2013-2016,（随导师转学至）University of Massachusetts-Amherst, 2016年获博士学位, 导师：Michael Ramsey-Musolf 教授

2016-2018 中国科学院理论物理研究所，博士后

2018至今 University of Oklahoma，博士后

2019至今 LIGO成员

地点

阳光房

时间

9月9日，周三上午10点

邀请人

范锡龙