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Friedmann cosmology as a global excitation in the dynamics of the general theory of relativity

Research paper by V. V. Papoyan, V. N. Pervushin, V. I. Smirichinskii

Indexed on: 01 Jul '99Published on: 01 Jul '99Published in: Astrophysics



Abstract

A global excitation variable is introduced, as a conformal factor of the metric that depends only on time, into the Einstein theory of gravitation formulated in terms of conformally invariant variables. The dynamics of this global excitation is isolated from the Einstein equations by direct averaging of their dynamical part over large spatial volumes. The conditions are found under which this dynamics duplicates the dynamics of the Friedmann cosmological model.