Cosmic evolution from phase transition of three-dimensional flat space.
Flat space cosmology spacetimes are exact time-dependent solutions of three-dimensional gravity theories, such as Einstein gravity or topologically massive gravity. We exhibit a novel kind of phase transition between these cosmological spacetimes and the Minkowski vacuum. At sufficiently high temperature, (rotating) hot flat space tunnels into a universe described by flat space cosmology.
School of Mathematics, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom and Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Arjun
A
Bagchi
Stephane
S
Detournay
Daniel
D
Grumiller
Joan
J
Simón