Vacuum Averages of the Energy-Momentum Tensor of a Scalar Field in Homogeneous Spaces with a Conformal Metric

A. I. Breev, A. V. Kozlov

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    1 Citation (Scopus)


    Within the framework of the method of orbits, expressions have been obtained for the vacuum averages of the energy-momentum tensor of a scalar field with an arbitrary coupling constant in a spacetime with a nonstationary metric of Robertson–Walker type, where space is a homogeneous Riemannian manifold. It is shown that the vacuum averages of the energy-momentum tensor are determined by the complete set of solutions of the reduced equation with a smaller number of independent variables and with algebraic characteristics of homogeneous space.

    Original languageEnglish
    Pages (from-to)1-10
    Number of pages10
    JournalRussian Physics Journal
    Publication statusAccepted/In press - 12 Jan 2016



    • method of noncommutative integration
    • polarization of the vacuum
    • Robertson–Walker metric

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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