Application of Quantum Darwinism to Diffusion during Cosmic Inflation
Abstract
Description
A baby-universe model of cosmic inflation is analyzed using quantum Darwinism. In this model cosmic inflation can be approximated as Brownian motion of a quantum field, and quantum Darwinism implies that decoherence is the result of quantum Brownian motion of the wave function. The quantum Darwinism approach to decoherence in the baby-universe cosmic-inflation model yields the decoherence times of the baby-universes. The result is the equation relating the baby-universe's decoherence time with the Hubble parameter. A brief discussion of the relation between Darwinism and determinism is provided in the Appendix.
Latex, 15 pages. Alterations to improve clarity of text, added references
Latex, 15 pages. Alterations to improve clarity of text, added references