Strong Gravity Frontier of Particle Physics

by Dr Yifan Chen (Niels Bohr Institute)

Wednesday 18 Oct 2023, 10:00 → 11:00 Asia/Shanghai

TDLI Meeting Room N601 (East Wing of Floor 6, North Building)

Abstract

In the vicinity of black holes, particle density can significantly increase, acting as efficient transducers. This is evident in the superradiant generation of ultralight bosons, which can attain Planck-scale field values. Within this dense boson environment, we witness the occurrence of non-perturbative particle production—a phenomenon previously associated primarily with the early-universe cosmology. Additionally, particle dark matter can accumulate outside black holes forming spike structures. This talk will explore their impact on various observational channels associated with black holes, such as the Event Horizon Telescope and high-energy neutrino observations.

Biography

Postdoc, 2022 — now, postdoc, Niels Bohr Institute, Denmark

Postdoc, 2019 — 2022, postdoc, ITP-CAS, China

Ph.D. 2019, LPTHE, Sorbonne Universite, France

M.S. 2016, Ecole Polytechnique, France

B.S. 2014, University of Science and Technology of China, China

Chair

Zhen Pan

Division

Astronomy and Astrophysics

Other information

Video record:

https://vshare.sjtu.edu.cn/open/66b8d016f8013adb7ea175e851761b6d