Jul 20 – 24, 2026
St. John's Hotel, Gangneung
Asia/Seoul timezone

Micro Black Holes may be Dark Matter of the Universe

Jul 21, 2026, 9:30 AM
1h
Babuda Ballroom, 4F, Ocean tower (St. John's Hotel, Gangneung)

Babuda Ballroom, 4F, Ocean tower

St. John's Hotel, Gangneung

307, Changhae-ro, Gangneung-si, Gangwon-do, Republic of Korea

Speaker

Prof. Misao Sasaki (APCTP)

Description

Primordial black holes (PBHs) are black holes which are believed to have formed in the very early Universe. Recently an idea that asteroid mass PBHs may be dark matter of the Universe is attracting a lot of attention. Their size is icroscopic; they are of the size of a hydrogen atom or smaller.
In this talk, I first briefly review our knowledge about dark matter and black holes, then introduce the idea of micro PBHs as dark matter of the Universe, and discuss how it can be observationally tested. It turns out that gravitational waves are the key to this observational test.

Presentation materials