Creation of the Nonconformal Scalar Particles in Nonstationary Metric

Abstract

The nonconformal scalar field is considered in N-dimensional space-time with metric which includes, in particular, the cases of nonhomogeneous spaces and anisotropic spaces of Bianchi type-I. The modified Hamiltonian is constructed. Under the diagonalization of it the energy of quasiparticles is equal to the oscillator frequency of the wave equation. The density of particles created by nonstationary metric is investigated. It is shown that the densities of conformal and nonconformal particles created in Friedmann radiative-dominant Universe coincide.

LaTeX, 4 pages, no figures

Cited by in corpus (8)

• Space-Time Description of Scalar Particle Creation by a Homogeneous Isotropic Gravitational Field
• Particle creation in the early Universe: achievements and problems
• Vacuum quantum effects on Lie groups with bi-invariant metrics
• Exact solutions and particle creation for nonconformal scalar fields in homogeneous isotropic cosmological models
• Fifty years of the calculation of the density of particles created in the early Friedmann Universe
• On creation of scalar particles with Gauss-Bonnet type coupling to curvature in Friedmann cosmological models
• Renormalization and dimensional regularization for a scalar field with Gauss-Bonnet-type coupling to curvature
• Some effects of the quantum field theory in the early Universe