Research Seminars @ Illinois

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Tailored for undergraduate researchers, this calendar is a curated list of research seminars at the University of Illinois. Explore the diverse world of research and expand your knowledge through engaging sessions designed to inspire and enlighten.

To have your events added or removed from this calendar, please contact OUR at ugresearch@illinois.edu

Astrophysics, Relativity, and Cosmology Seminar - Avery Tishue (UIUC) "Fundamental Physics with kSZ Tomography"

Event Type: Seminar/Symposium
Sponsor: Department of Physics
Location: Rhondale Tso Seminar Room, Loomis 236
Virtual: Join online
Date: Apr 23, 2025 12:00 pm
Speaker: Avery Tishue, UIUC
Contact: Deanna Frye
E-Mail: ddebord@illinois.edu
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Originating Calendar: Physics - Astrophysics, Relativity, and Cosmology Seminar; Recently, a new technique called kinematic Sunyaev-Zel’dovich (kSZ) tomography has emerged as a potentially powerful probe of cosmology. With kSZ tomography, correlations between cosmic microwave background and galaxy survey data allow us to reconstruct the peculiar velocity field of large-scale structure.
In this talk, I will discuss how we can leverage the information in the velocity field to probe fundamental physics, focusing on two applications. First, I will show how we can use kSZ tomography to search for new physics from the primordial Universe, for example in the form of light particles during inflation. In the second application, we will pivot to the late Universe and explore the possibility of using the velocity field as a probe of the neutrino masses. Finally, I will speculate about some avenues for future progress with kSZ tomography and cosmological probes of fundamental physics.

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