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Universe 2018, 4(8), 89; https://doi.org/10.3390/universe4080089

Using Trajectories in Quantum Cosmology

1
Institut d’Astrophysique de Paris (GReCO), UMR 7095 CNRS, 98bis boulevard Arago, 75014 Paris, France
2
Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, UK
Received: 13 July 2018 / Revised: 3 August 2018 / Accepted: 9 August 2018 / Published: 15 August 2018
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Simple Summary

I discuss the application of quantum trajectory formalism to the FLRW Universe.

Abstract

Quantum cosmology based on the Wheeler De Witt equation represents a simple way to implement plausible quantum effects in a gravitational setup. In its minisuperspace version wherein one restricts attention to FLRW metrics with a single scale factor and only a few degrees of freedom describing matter, one can obtain exact solutions and thus acquire full knowledge of the wave function. Although this is the usual way to treat a quantum mechanical system, it turns out however to be essentially meaningless in a cosmological framework. Turning to a trajectory approach then provides an effective means of deriving physical consequences. View Full-Text
Keywords: cosmology; quantum gravity; quantum trajectory cosmology; quantum gravity; quantum trajectory
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Peter, P. Using Trajectories in Quantum Cosmology. Universe 2018, 4, 89.

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