Prog. Theor. Phys. Vol. 53 No. 3 (1975) pp. 656-670

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On the Average Effect of a Highly Turbulent Gravito-Hydrodynamic Field in the Hadron Era of the Universe. II

— Consideration of Dissipative Processes —

Hidekazu Nariai

Research Institute for Theoretical Physics, Hiroshima University, Takehara, Hiroshima

(Received October 5, 1974)

Abstract:

The previous formalism for dealing with the average effect of a highly supersonic turbulent gravito-hydrodynamic field in the hadron era of the universe is extended so as to take into consideration various dissipative processes in the hadronic substratum. After a phenomenological fixation of the coefficients of bulk viscosity, shear viscosity and heat conduction, it is shown that those dissipative processes have a considerable influence upon the three characteristic mean-value quantities (at the bounce epoch of our regular model-universe) corresponding to metric, velocity and density fluctuations. A possibility of fixing the dissipation coefficients of the hadronic matter under consideration, i.e., the one based on the concept of statistical bootstrap, in a more well-founded manner is also conjectured.

URL : http://ptp.ipap.jp/link?PTP/53/656/
DOI : 10.1143/PTP.53.656

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Citing Article(s) :

Progress of Theoretical Physics Vol. 54 No. 5 (1975) pp. 1356-1367 :
On the Average Effect of a Highly Turbulent Gravito-Hydrodynamic Field in the Hadron Era of the Universe. III

Hidekazu Nariai
Progress of Theoretical Physics Vol. 55 No. 4 (1976) pp. 1116-1132 :
Propagators for a Scalar Field in a Homogeneous Expanding Universe. I

Hidekazu Nariai and Kenji Tanabe