报告题目：黑洞的标量化与退标量化

报告人：牛超 副研究员（暨南大学）

报告时间：2022年06月23日（周四）下午15:30-16:30

报告地点：在线报告（腾讯会议ID：442 4477 5872）

报告摘要：

We study the fully nonlinear dynamics of the spherically symmetric black hole spontaneous scalarization in Einstein-Maxwell-scalar (EMS) theory, which can transform usual Reissner-Nordström black holes into hairy black holes. Fixing the Arnowitt-Deser-Misner mass of the system, the initial scalar perturbation will destroy the original RN black hole and turn it into a spherically symmetric hairy black hole provided that the coupling constant in the coupling function and the charge of the original black hole are sufficiently large. In the scalarization process, we observe that the black hole irreducible mass initially increases exponentially, then it approaches to and finally saturates at a finite value. Choosing stronger coupling and larger black hole charge, we find that the black hole mass exponentially grows earlier and it takes longer time for a hairy black hole to be developed and stabilized. We further examine the reverse dynamical process called descalarization in EMS model via shooting a wave packet to a scalarized black and take into account the full interaction between the spacetime background and the scalar field.

报告人简介：

牛超，暨南大学理工学院副研究员。2015年博士毕业于中国科学院高能物理研究所，随后到韩国光州科学技术研究院做博士后研究，于2018年加入暨南大学。近年来主要集中于黑洞物理方面的研究工作，尤其是标量化黑洞的构造及演化。

报告链接：

黑洞的标量化与退标量化_哔哩哔哩_bilibili