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Prog. Theor. Phys. Vol. 90 No. 4 (1993) pp. 851-860

[ Full Text PDF : FREE ACCESS (699K) ]

Particle Creation in a Universe Filled with Radiation and Dust-Like Matter

Víctor M. Villalba

Centro de Física, Instituto Venezolano de Investigaciones Científicas (IVIC), Apartado 21827, Caracas 1020A

(Received May 21, 1993)

Abstract:

In this article the particle creation process of scalar and spin 1/2 particles in a spatially open cosmological model associated with a universe filled with radiation and dustlike matter is analyzed. The Klein-Gordon and the Dirac equations are solved via separation of variables. After comparing the in and out vacua, we obtain that the number of created particles corresponds to Planckian and Fermi-Dirac distributions for the scalar and Dirac cases respectively.


URL : http://ptp.ipap.jp/link?PTP/90/851/
DOI : 10.1143/PTP.90.851

[ Full Text PDF : FREE ACCESS (699K) ] Citation:

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