Speaker
Dr
Eugene Lim
(King's College London)
Description
We investigate the robustness of inflation to inhomogenous initial conditions using the numerical relativity package GRCHOMBO. We show that small field inflation is generally less robust than large field inflation. Furthermore, we show that while increasing inhomogeneities can lead to the formation of black holes during inflation, the black holes will not achieve the Nariai mass and hence will never form dominant black hole spacetimes that can stop successful inflation. Finally, we investigate a class of initial conditions with a mix of expanding and collapsing regions, and find that inflation is successful as long as the spacetime is initially open.
Author
Dr
Eugene Lim
(King's College London)
