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Vacuum decay in an interacting multiverse

2016; Elsevier BV; Volume: 759; Linguagem: Inglês

10.1016/j.physletb.2016.05.091

1873-2445

Salvador Robles-Pérez, Ana Alonso-Serrano, Catarina Bastos, Orfeu Bertolami,

Galaxies: Formation, Evolution, Phenomena

We examine a new multiverse scenario in which the component universes interact. We focus our attention to the process of "true" vacuum nucleation in the false vacuum within one single element of the multiverse. It is shown that the interactions lead to a collective behaviour that might lead, under specific conditions, to a pre-inflationary phase and ensued distinguishable imprints in the comic microwave background radiation.