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

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

Jul 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ap.....42..344p&link_type=abstract

Astrophysics, Volume 42, Issue 3, pp.344-349

Astronomy and Astrophysics

Astrophysics

Scientific paper

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.

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