Space-Time Description of Scalar Particle Creation by a Homogeneous Isotropic Gravitational Field
نویسنده
چکیده
We give the generalization of the method of the space-time description of particle creation by a gravitational field for a scalar field with nonconformal coupling to the curvature. The space-time correlation function is obtained for a created pair of the quasi-particles, corresponding to a diagonal form of the instantaneous Hamiltonian. The case of an adiabatic change of the metric of homogeneous isotropic space is analyzed. We show that the created pairs of quasi-particles in de Sitter space should be interpreted as pairs of virtual particles. PACS number: 04.62.+v, 03.70.+k
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