SEMINAR 2024

Discovering Dark Matter with Cosmology

SpeakerDr Liu Hongwan, Kavli Institute for Cosmological Physics, University of Chicago & Fermilab
Date/TimeWednesday, 24 April, 3PM
LocationConference room: S11-02-07
HostProf Gong Jiangbin

Abstract

Dark matter is a pillar of modern cosmology: the evidence for a nonrelativistic, weakly interacting fluid pulling gravitationally on regular matter and playing an important role in the formation of large scale cosmic structures is overwhelming. Despite this, understanding the microscopic properties of dark matter—i.e., what is dark matter made of?—is one of the most important goals of high-energy physics and cosmology today.

In this talk, I will review the significant evidence for dark matter as a gravitationally interacting fluid, and explain how we can use our knowledge of cosmology to learn more about its microscopic properties.

Biography

Liu Hongwan received his PhD in physics from MIT in 2019. From 2019 to 2023, he was a joint postdoctoral fellow at New York University’s Center for Cosmology and Particle Physics, and Princeton University. He is currently jointly appointed as a fellow at the University of Chicago’s Kavli Institute for Cosmological Physics (KICP), and the Schramm Fellow in theoretical astrophysics at Fermilab. He will join the physics faculty of Boston University in July 2024.