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Conformal anomalies and massless particle generation in a Fridman universe

  • Physics of Elementary Particles and Field Theory
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Soviet Physics Journal Aims and scope

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Abstract

The general structure of conformai anomalies of the energy-momentum tensor is established. The energy density of massless particles generated during the cosmological expansion is calculated in the lowest-order perturbation theory. Estimates are made that indicate that the energy density of generated massless particles in the early universe can significantly exceed the energy density of the generated massive particles.

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Authors and Affiliations

  1. Lenin Komsomol Tomsk Pedagogic Institute, USSR

    I. L. Bukhbinder & S. D. Odintsov

Authors
  1. I. L. Bukhbinder
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  2. S. D. Odintsov
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Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 8, pp. 54–58, August, 1984.

We are grateful to E. S. Fradkin, V. P. Frolov, I. V. Tyutin, and B. L. Voronov for useful discussions.

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Bukhbinder, I.L., Odintsov, S.D. Conformal anomalies and massless particle generation in a Fridman universe. Soviet Physics Journal 27, 674–677 (1984). https://doi.org/10.1007/BF00893111

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  • DOI: https://doi.org/10.1007/BF00893111

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