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Effect of Fast Scale Factor Fluctuations on Cosmological Evolution

Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, USA
Academic Editors: Jean-Pierre Gazeau and Przemyslaw Malkiewicz
Universe 2021, 7(6), 164; https://doi.org/10.3390/universe7060164
Received: 21 April 2021 / Revised: 14 May 2021 / Accepted: 25 May 2021 / Published: 27 May 2021
(This article belongs to the Special Issue Quantum Models for Cosmology)
In this paper, we study the corrections to the Friedmann equations due to fast fluctuations in the universe scale factor. Such fast quantum fluctuations were recently proposed as a potential solution to the cosmological constant problem. They also induce strong changes to the current sign and magnitude of the average cosmological force, thus making them one of the potential probable causes of the modification of Newtonian dynamics in galaxy-scale systems. It appears that quantum fluctuations in the scale factor also modify the Friedmann equations, leading to a considerable modification of cosmological evolution. In particular, they give rise to the late-time accelerated expansion of the universe, and they may also considerably modify the effective universe potential. View Full-Text
Keywords: semiclassical descriptions; quantum cosmology; scale factor semiclassical descriptions; quantum cosmology; scale factor
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MDPI and ACS Style

Smolyaninov, I.I. Effect of Fast Scale Factor Fluctuations on Cosmological Evolution. Universe 2021, 7, 164. https://doi.org/10.3390/universe7060164

AMA Style

Smolyaninov II. Effect of Fast Scale Factor Fluctuations on Cosmological Evolution. Universe. 2021; 7(6):164. https://doi.org/10.3390/universe7060164

Chicago/Turabian Style

Smolyaninov, Igor I. 2021. "Effect of Fast Scale Factor Fluctuations on Cosmological Evolution" Universe 7, no. 6: 164. https://doi.org/10.3390/universe7060164

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