Thermal and Dynamical Particle Creation in a Curved Geometry

Details Thermal and Dynamical Particle Creation in a Curved Geometry Thermal and Dynamical Particle Creation in a Curved Geometry

1996-10-16

arxiv.org/abs/hep-th/9610116v1

Annals Phys. 264 (1998) 95-107

Physics

High Energy Physics

High Energy Physics - Theory

13 pages

Scientific paper

10.1006/aphy.1997.5779

A generalization of ``Termo Field Dynamics'' to a curved geometry is proposed. In particular a neutral scalar field minimally coupled to gravity is considered as matter content in a Robertson-Walker metric. A non linear amplification in the particle creation is obtained, due to the altogether action of thermal and geometric effects. As a consequence the frequencies in the system look like red shifted with respect to the case where the thermal creation is not taken into account.

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