Collapse of simple harmonic universe
Abstract
In a recent paper Graham et al constructed oscillating and static universe models which are stable with respect to all classical perturbations. Here we show that such universes are quantum-mechanically unstable and can collapse by quantum tunneling to zero radius. We also present instantons describing nucleation of oscillating and static universes from nothing.
- Publication:
-
Journal of Cosmology and Astroparticle Physics
- Pub Date:
- January 2012
- DOI:
- 10.1088/1475-7516/2012/01/028
- arXiv:
- arXiv:1110.4096
- Bibcode:
- 2012JCAP...01..028M
- Keywords:
-
- High Energy Physics - Theory;
- General Relativity and Quantum Cosmology
- E-Print:
- 14 pages, 4 figures