Speaker:

Patrick Draper

Institution:

University of Illinois at Urbana-Champaign

Date:

Wednesday, February 24, 2021

Time:

11:00 am

Location:

Zoom Seminar

**Abstract: **

The bubble of nothing is a gravitational instanton that can be thought of as describing tunneling through a vanishing scalar potential barrier to a vacuum at infinity. I will discuss generalizations of this process to nonzero scalar potentials with metastable de Sitter vacua. In simple cases, approximate bubble-of-nothing solutions can be constructed analytically. More generally, the problem can be formulated as a set of CdL equations with singular boundary conditions and solved numerically.

Host:

Michael Ratz