Collapse of simple harmonic universe

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Published 10 January 2012 Published under licence by IOP Publishing Ltd
, , Citation Audrey T. Mithani and Alexander Vilenkin JCAP01(2012)028 DOI 10.1088/1475-7516/2012/01/028

1475-7516/2012/01/028

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.

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10.1088/1475-7516/2012/01/028