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Universe 2018, 4(8), 89;

Using Trajectories in Quantum Cosmology

Institut d’Astrophysique de Paris (GReCO), UMR 7095 CNRS, 98bis boulevard Arago, 75014 Paris, France
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.


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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