Stochastic gravitational waves from Primordial Black Holes

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 Time:  Thursday, December 16, 2021, 02:00pm
 Title:  Stochastic gravitational waves from Primordial Black Holes
 Speaker:  Dr. Shi Pi (ITP, CAS)
 Location:

S727 & Online via Zoom


ABSTRACT

The discovery of gravitational waves from the coalescence of binary black holes in 2015 has marked the dawn of the gravitational wave (GW) astronomy/cosmology. Besides the gravitational wave bursts from the mergers, our universe is fulfilled by stochastic background of gravitational waves, which carries fruitful information of the early universe. I will briefly review the secondary GWs sourced by the primordial velocity perturbation of the cosmic fluid originating from inflation, and discuss their connection to the primordial black holes which may be candidates for all the dark matter. I will explain why the space-borne interferometers like LISA/Taiji/TianQin can detect the associated GW signals when the primordial black holes are all the dark matter.

BIO
2001-2005 Department of Physics, Peking University, Bachelor
2006-2013 Department of Physics, Peking University, PhD
2013-2015 Asian Pacitic Center for Theoretical Physics (Korea), Postdoc
2015-2017 Institute of Theoretical Physics, Chinese Academy of Sciences, Postdoc
2017-2018 Yukawa Institute of Theoretical Physics, Kyoto University (Japan), Research Asistant Professor
2018-2020 Kavli Institute of Physics and Mathematics of the Universe, the University of Tokyo (Japan), Project Researcher
2020-Now Institute of Theoretical Physics, Chinese Academy of Sciences, Associate Professor
Research interest: gravity, cosmological perturbation theory, inflation, stochastic gravitational waves.

Host: Zhuo Chen


Slides: