Collapse of simple harmonic universe
Oct, 2011Citations per year
Abstract: (arXiv)
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.Note:
- 14 pages, 4 figures; v2: Discussion of tunneling from nothing is expanded into a separate section; some references added; v3: Note added; some additional references added; v4: some comments and references added
- tunneling: quantum
- space-time: collapse
- cosmological model: oscillation
- space-time: stability
- nucleation
- instanton
- space-time: emergence
- Wheeler-DeWitt equation
- boundary condition
- inflation
References(23)
Figures(4)