Quantum state evolution in an environment of cosmological perturbations
General Relativity and Quantum Cosmology
2021-04-23 v1 High Energy Physics - Theory
Abstract
We study the pure and thermal states of quantized scalar and tensor perturbations in various epochs of Universe evolution. We calculate the density matrix of non-relativistic particles in an environment of these perturbations. We show that particle's motion can be described by a stochastic equation with a noise coming from the cosmological environment. We investigate the squeezing of Gaussian wave packets in different epochs and its impact upon the noise of quantized cosmological perturbations.
Cite
@article{arxiv.2104.10433,
title = {Quantum state evolution in an environment of cosmological perturbations},
author = {Z. Haba},
journal= {arXiv preprint arXiv:2104.10433},
year = {2021}
}
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34 pages