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Superpositions of the cosmological constant allow for singularity resolution and unitary evolution in quantum cosmology

Gryb, Sean and Thebault, Karim P Y (2018) Superpositions of the cosmological constant allow for singularity resolution and unitary evolution in quantum cosmology. [Preprint]

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Abstract

A novel approach to quantization is shown to allow for superpositions of the cosmological constant in isotropic and homogeneous mini-superspace models. Generic solutions featuring such superpositions display: i) a unitary evolution equation; ii) singularity resolution; iii) a cosmic bounce. Explicit cosmological solutions are constructed. These exhibit characteristic bounce features including a ‘super-inflation’ regime with universal phenomenology that can naturally be made to be insensitive to Planck-scale physics.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Gryb, Seans.gryb@hef.ru.nl
Thebault, Karim P Ykarim.thebault@gmail.com
Keywords: quantum cosmology, singularity resolution, problem of time
Subjects: Specific Sciences > Physics > Cosmology
Specific Sciences > Physics > Quantum Gravity
Depositing User: Dr Karim Thebault
Date Deposited: 19 Jan 2018 13:44
Last Modified: 19 Jan 2018 13:44
Item ID: 14306
Subjects: Specific Sciences > Physics > Cosmology
Specific Sciences > Physics > Quantum Gravity
Date: 19 January 2018
URI: http://philsci-archive.pitt.edu/id/eprint/14306

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