Production of photons in anisotropic spacetimes.

Details Production of photons in anisotropic spacetimes. Production of photons in anisotropic spacetimes.

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ppa..book.....l&link_type=abstract

Production of photons in anisotropic spacetimes., by Lotze, K. H.. International Centre for Theoretical Physics, Trieste (Italy

Physics

Scientific paper

Under the main aspect of the creation of photon pairs from vacuum the author investigates the Maxwell equations in anisotropic universes with a diagonal Bianchi type I metric. Thereby he employs a method developed earlier by Sagnotti and Zwiebach (1981). For two axisymmetric expansion laws one obtains exact photon solutions of the Maxwell equations making use of a WKB particle concept. The author computes the number densities of created photons and emphasizes the importance of singularity avoidance for getting finite results. In the case of weak anisotropies the results by Zel'dovich and Starobinsky (1977) are regained and commented on.

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