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arXiv · 1703.09267

Quantum Hamilton-Jacobi cosmology and classical-quantum correlation

M. Fathi·S. Jalalzadeh
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Abstract

How the time evolution which is typical for classical cosmology emerges from quantum cosmology? The answer is not trivial because the Wheeler-DeWitt equation is time independent. A framework associating the quantum Hamilton-Jacobi to the minisuperspace cosmological models has been introduced in [1]. In this paper, we show that time dependence and quantum-classical correspondence both arise naturally in the quantum Hamilton-Jacobi formalism of quantum mechanics applied to quantum cosmology. We study the quantum Hamilton-Jacobi cosmology of spatially flat homogeneous and isotropic early universe whose matter content is a perfect fluid. The classical cosmology emerge around one Planck time where its linear size is around a few millimeter, without needing any classical inflationary phase afterwards to make it grow to its present size.

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M. Fathi, S. Jalalzadeh. 2017-03-27. Quantum Hamilton-Jacobi cosmology and classical-quantum correlation. https://doi.org/10.1007/s10773-017-3363-1

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