Decoherence of Vacuum Fluctuations in Cosmology

Details Decoherence of Vacuum Fluctuations in Cosmology Decoherence of Vacuum Fluctuations in Cosmology

1997-03-27

arxiv.org/abs/gr-qc/9703079v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

3 pages, Latex. To appear in Proceedings of 18th Texas Conference on Relativistic Astrophysics

Scientific paper

A calculation of the one-mode occupation numbers for vacuum fluctuations of massive fields in De Sitter space shows that their use for the generation of classical density perturbations in inflationary cosmology very much depends on their masses and conformal couplings. A new mechanism for the decoherence of relatively massive fields has been identified. A similar analysis of the power law inflation shows that production of adiabatic density perturbations may not take place in models with power p < 3.

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