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Open Quantum Systems Decoherence

Wheeler-DeWitt equation rejects quantum effects of grown-up universes as a candidate for dark energy

arXiv
Authors: Dongshan He, Qing-yu Cai

Year

2020

Paper ID

20781

Status

Preprint

Abstract Read

~2 min

Abstract Words

102

Citations

N/A

Abstract

In this paper, we study the changes of quantum effects of a growing universe by using Wheeler-DeWitt equation (WDWE) together with de Broglie-Bohm quantum trajectory approach. From WDWE, we obtain the quantum modified Friedmann equations which have additional terms called quantum potential compared to standard Friedmann equations. The quantum potential governs the behavior of the early universe, providing energy for inflation, while it decreases rapidly as the universe grows. The quantum potential of the grown-up universe is much smaller than that required for accelerating expansion. This indicates that quantum effects of our universe cannot be treated as a candidate for dark energy.

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  • In this paper, we study the changes of quantum effects of a growing universe by using Wheeler-DeWitt equation (WDWE) together with de Broglie-Bohm quantum trajectory approach.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2009.05187 [2] arXiv https://arxiv.org/abs/2009.05187 [3] Publisher https://arxiv.org/abs/2009.05187

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