Jul 5 – 10, 2021
Europe/Rome timezone

Primordial Black Holes and Stochastic Gravitational Waves in the Sound Speed Resonance Cosmology

Jul 6, 2021, 7:30 AM
Invited talk in the parallel session Extended Theories of Gravity and Quantum Cosmology Extended Theories of Gravity and Quantum Cosmology


Sheng-Feng Yan (INFN(Milano), USTC)


Primordial black hole (PBH) is a kind of important Dark Matter candidate of cosmological origin. And it is also a potential seed of supermassive black holes. However, the formation and the astrophysical effects of PBH still remain unclear. From theoretical perspective, the speaker and his collaborators proposed sound speed resonance (SSR) mechanism as an efficient novel effect to produce PBH. The speaker will briefly review PBH and SSR mechanism and summarize what they have done in this topic. After that, he will introduce their recent work on the SSR mechanism of stochastic gravitational waves which might be a new probe for new physics in the early universe.

Primary author

Sheng-Feng Yan (INFN(Milano), USTC)


Dr Bo Wang (USTC) Dr Chao Chen Prof. Chunshan Lin (Jagiellonian U.) Dong-Gang Wang (DAMTP, Cambridge) Dr Xi Tong (HKUST) Prof. Yi-Fu Cai (University of Science and Technology of China)

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