Physics Seminar: Light Does Not Alway Travel On a Light Cone
The Department of Physics cordially invites you to the following seminar:
Title: Light Does Not Alway Travel On a Light Cone
Speaker: Yi-Zen Chu (Department of Physics, National Central University, Taiwan)
Date: Monday August 8th 2022, 2:00 pm
Location: BSFA, Department of Physics
Abstract:
It does not appear to be a well appreciated fact, even among physicists, that electromagnetic and gravitational waves -- despite their massless characters -- do not travel exclusively on the light cone. This is the case in curved spacetimes as well as odd dimensional flat ones. I will attempt to explain this "tail" effect; and highlight why it is an important factor to account for in space-based detections of gravitational waves from supermassive black holes (Extreme-Mass-Ratio-Inspirals)
About the Speaker:
Yi-Zen Chu is a Professor at the Department of Physics, National Central University, Taiwan. He obtained his PhD at Case Western Reserve University, the home institute of Michelson and Morley. Currently, his primary research interests lie in the properties of gravitational waves and associated field theoretic issues.