Speaker
Zhen-Hong Lyu
(Institute of Theoretical Physics, CAS)
Description
We demonstrate that black hole superradiance provides a powerful probe of interacting dark energy models. We investigate two scenarios: one where the dark energy acts as a mediator of ultralight dark matter self-interactions, and another where the dark energy field itself becomes superradiant due to a density-dependent mass enhancement within a dark matter spike surrounding a supermassive black hole. The existence of highly-spinning black holes allows us to place novel constraints on the fundamental coupling strength of these dark sector interactions. Our results establish black hole observations as a new and complementary window into the physics of the dark sector.
Primary authors
Prof.
Rong-Gen Cai
Zong-Kuan Guo
Mr
Jian-Feng He
Prof.
Jing Liu
