Squeezed Vacua and the Quantum Statistics of Cosmological Particle Creation

Details Squeezed Vacua and the Quantum Statistics of Cosmological Particle Creation Squeezed Vacua and the Quantum Statistics of Cosmological Particle Creation

1993-12-08

arxiv.org/abs/gr-qc/9312014v1

Int.J.Mod.Phys. A9 (1994) 991-1008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

19 pages in latex. To appear in IJMPA

Scientific paper

10.1142/S0217751X94000455

We use the language of squeezed states to give a systematic description of two issues in cosmological particle creation: a) Dependence of particle creation on the initial state specified. We consider in particular the number state, the coherent and the squeezed state. b) The relation of spontaneous and stimulated particle creation and their dependence on the initial state. We also present results for the fluctuations in particle number in anticipation of its relevance to defining noise in quantum fields and the vacuum susceptibility of spacetime.

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