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Bouncing Unitary Cosmology II. Mini-Superspace Phenomenology

Gryb, Sean and Thebault, Karim (2018) Bouncing Unitary Cosmology II. Mini-Superspace Phenomenology. [Preprint]

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Abstract

A companion paper provides a proposal for cosmic singularity resolution based upon general features of a bouncing unitary cosmological model in the mini-superspace approximation. This paper analyses novel phenomenology that can be identified within particular solutions of that model. First, we justify our choice of particular solutions based upon a clearly articulated and observationally motivated principle. Second, we demonstrate that the chosen solutions follow a classical mini- superspace cosmology before smoothly bouncing off the classically singular region. Third, and most significantly, we identify a ‘Rayleigh-scattering’ limit for physically reasonable choices of parameters within which the solutions display effective behaviour that is insensitive to the details of rapidly oscillating Planck-scale physics. This effective physics is found to be compatible with an effective period of cosmic inflation well below the Planck scale. The detailed effective physics of this Rayleigh-scattering limit is provided via: i) an exact analytical treatment of the model in the de Sitter limit; and ii) numerical solutions of the full model.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Gryb, Seans.gryb@hef.ru.nl
Thebault, Karimkarim.thebault@gmail.com
Keywords: quantum cosmology, problem of time
Subjects: Specific Sciences > Physics > Cosmology
Specific Sciences > Physics > Quantum Gravity
Depositing User: Dr Karim Thebault
Date Deposited: 19 Jan 2018 13:48
Last Modified: 19 Jan 2018 13:48
Item ID: 14308
Subjects: Specific Sciences > Physics > Cosmology
Specific Sciences > Physics > Quantum Gravity
Date: 19 January 2018
URI: https://philsci-archive-dev.library.pitt.edu/id/eprint/14308

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