Particle creation from vacuum by a~nonstationary gravitational field in the canonical formalism
Teoretičeskaâ i matematičeskaâ fizika, Tome 19 (1974) no. 1, pp. 59-75
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A study is made of particle creation from vacuum in isotropic and anisotropic models of the universe. By diagonalizing the Hamiltonian by Bogolyubov transformations, we obtain exact expressions for the particle number density and for the vacuum expectation values of the energy-momentum tensor of the created pairs. It is shown that near the singularity the equation of state of the created particles is $p\approx\varepsilon/3$. The problem of allowing for the reciprocal influence of particles on the metric is discussed.
@article{TMF_1974_19_1_a5,
author = {A. A. Grib and B. A. Levitskii and V. M. Mostepanenko},
title = {Particle creation from vacuum by a~nonstationary gravitational field in the canonical formalism},
journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
pages = {59--75},
publisher = {mathdoc},
volume = {19},
number = {1},
year = {1974},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/TMF_1974_19_1_a5/}
}
TY - JOUR AU - A. A. Grib AU - B. A. Levitskii AU - V. M. Mostepanenko TI - Particle creation from vacuum by a~nonstationary gravitational field in the canonical formalism JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1974 SP - 59 EP - 75 VL - 19 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1974_19_1_a5/ LA - ru ID - TMF_1974_19_1_a5 ER -
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A. A. Grib; B. A. Levitskii; V. M. Mostepanenko. Particle creation from vacuum by a~nonstationary gravitational field in the canonical formalism. Teoretičeskaâ i matematičeskaâ fizika, Tome 19 (1974) no. 1, pp. 59-75. http://geodesic.mathdoc.fr/item/TMF_1974_19_1_a5/