Particle Creation from Vacuum in Homogeneous Isotropic Models of the Universe

Grib, A.A; Mamaev, S.G.; Mostepanenko, V.M.

doi:10.1007/BF00766413

Particle Creation from Vacuum in Homogeneous Isotropic Models of the Universe

A.A Grib
(
- St. Petersburg State U. and
- St. Petersburg Electrotech. Inst.
)
,
S.G. Mamaev
(
- St. Petersburg State U. and
- St. Petersburg Electrotech. Inst.
)
,
V.M. Mostepanenko
(
- St. Petersburg State U. and
- St. Petersburg Electrotech. Inst.
)

1976

13 pages

Published in:

Gen.Rel.Grav. 7 (1976) 535-547

DOI:

10.1007/BF00766413

View in:

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Abstract: (Springer)

Particle creation in Friedman models of the open, closed, and quasi-Euclidean types is considered. The new method of calculation of probabilities of pair creation from vacuum by nonstationary external gravitational field is developed. This method is based on the diagonalization of the energy operator with the help of time-dependent canonical transformations. Finite numerical estimates for the densities of created particles and antiparticles are obtained both for early and modern stages of the evolution of the Universe.

ASTROPHYSICS
PARTICLE: PRODUCTION
PRODUCTION: PARTICLE
Friedman model
PARTICLE: PAIR PRODUCTION
PAIR PRODUCTION: PARTICLE
GRAVITATION
FIELD THEORY: EXTERNAL FIELD
FIELD THEORY: VACUUM STATE
NUMERICAL CALCULATIONS

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