Smoothing regularization and particle creation in curved spacetime |
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Authors: | A.A. Kharkov |
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Affiliation: | Institute of Nuclear Physics, 630090 Novosibirsk 90, USSR |
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Abstract: | A regularization procedure is given for the stress tensor of a quantized field in a background metric. This regularization is shown to be equivalent to a covariant renormalization of constants in the generalized Einstein equations. An example of the massive spinor field in Robertson-Walker universe is considered. Regular values of the stress tensor near the cosmological singularity are found. |
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