Quantum gravitational effects in an isotropic Universe with torsion

Details Quantum gravitational effects in an isotropic Universe with torsion Quantum gravitational effects in an isotropic Universe with torsion

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988svphj..31..691v&link_type=abstract

Soviet Physics Journal, Volume 31, Issue 9, pp.691-694

Physics

Scientific paper

In the framework of the quasiclassical self-consistent approach we consider a nonminimally coupled scalar field which serves as a source of torsion in an isotropic homogeneous Universe. We obtain a local asymptotic expansion for the propagator of the scalar field and the effective action, taking into account the effects of vacuum polarization and interaction of scalar particles with the self-consistent gravitational field. The leading polarization contributions can be represented in general-covariant form. A simplified cosmological model is constructed which takes into account the interaction.

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