![School of Natural Sciences Event](/sites/default/files/styles/two_column_medium/public/2019-09/sns_default.jpg?itok=IEu1CLXj)
Princeton University Gravity Initiative Spring Seminar Series
Stabilising Relativistic Fluids on Slowly Expanding Cosmological Spacetimes
On a background Minkowski spacetime, the relativistic Euler equations are known, for a relatively general equation of state, to admit unstable homogeneous solutions with finite-time shock formation. By contrast, such shock formation can be suppressed on background cosmological spacetimes whose spatial slices expand at an accelerated rate. The critical case of linear, ie zero-accelerated, spatial expansion, is not as well understood. In this talk, I will present two recent works concerning the relativistic Euler and the Einstein-Dust equations for geometries expanding at a linear rate. This is based on joint works with David Fajman (Vienna), Todd Oliynyk (Monash) and Max Ofner (Vienna).
Date & Time
March 28, 2022 | 12:30pm – 1:30pm
Location
Princeton University, Jadwin Hall, Princeton Gravity Initiative, 4th Floor, & ZoomSpeakers
Zoe Wyatt
Affiliation
University of Cambridge