Tunneling and the Emergent Universe scheme in a JBD Theory
Abstract
In this work it is proposed an alternative scheme for an Emergent Universe scenario in the context of a Jordan-Brans-Dicke theory, where the universe is initially in a static state supported by a scalar field located in a false vacuum. The universe begins to evolve when, by quantum tunneling, the scalar field decays into a state of true vacuum.
In particular, in this work we study the stability of the static universe, under the aforementioned characteristics, and the probability of creating a true vacuum bubble. It is shown that in this model, unlike what happens in previous works, the static universe is stable under small classical perturbations.- Publication:
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Journal of Physics Conference Series
- Pub Date:
- June 2018
- DOI:
- 10.1088/1742-6596/1043/1/012021
- Bibcode:
- 2018JPhCS1043a2021C