Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Evidence of Time Evolution in Quantum Gravity

Version 1 : Received: 1 April 2020 / Approved: 3 April 2020 / Online: 3 April 2020 (04:36:11 CEST)

A peer-reviewed article of this Preprint also exists.

Kalashnikov, S.C.V. Evidence of Time Evolution in Quantum Gravity. Universe 2020, 6, 67. Kalashnikov, S.C.V. Evidence of Time Evolution in Quantum Gravity. Universe 2020, 6, 67.

Journal reference: Universe 2020, 6, 67
DOI: 10.3390/universe6050067

Abstract

We argue that the problem of time is not a crucial issue inherent in the quantum picture of the universe evolution. On the minisuperspace model example with the massless scalar field, we demonstrate four approaches to the description of quantum evolution, which give similar results explicitly. The relevance of these approaches to building a quantum theory of gravity is discussed.

Subject Areas

quantum cosmology; the problem of the time; initial conditions in the quantum universe; quantum gravity

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