Physics
Scientific paper
Nov 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974pthph..52.1539n&link_type=abstract
Progress of Theoretical Physics, Vol. 52, No. 5, pp. 1539-1553
Physics
4
Scientific paper
An attempt is made to give a physical basis for our modification of Einstein's gravitational equations, which has been proposed in a previous paper to arrive at an isotropic model-universe that may bounce in the hadron era, tends rapidly to the Friedmann universe and remains regular with respect to the excitation of gravitational and rotational waves. The basic idea lies in reinterpreting the modified field equations as those for the mean-value field of a highly turbulent gravito-hydrodynamic field (obeying Einstein's equations) whose substratum is dominated by the hadronic matter, with large density fluctuation. In the case where the mean-value metric represents the regular model-universe, it is shown that, so far as the bounce epoch of the universe is concerned, three characteristic mean-value quantities specifying metric, velocity and density fluctuations are compatible with the basic idea. Several problems to be pursued further are also touched upon.
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