Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...277..478k&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 277, Feb. 15, 1984, p. 478-480. Research supported by the Alfred P. Sloan F
Astronomy and Astrophysics
Astrophysics
Cosmology, Gravitational Constant, Thermodynamics, Universe, Einstein Equations
Scientific paper
Following Sakharov, the authors liken spacetime to an elastic medium with the gravitational constant G playing the role of a temperature-dependent elastic constant. Within this approximation scheme, if G is a decreasing function of temperature, then the flatness and horizon problems are less severe but cannot be solved completely. Hence it appears that some type of inflationary scenario is unavoidable if these fine tuning problems are to be solved without fundamental modifications of the Einstein equations.
Kephart Thomas W.
NG Yee Jack
van Dam Hendrik
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