Semiclassical approach to stability of extra-dimensional spaces

Details Semiclassical approach to stability of extra-dimensional spaces Semiclassical approach to stability of extra-dimensional spaces

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997cqgra..14..257e&link_type=abstract

Classical and Quantum Gravity, Volume 14, Issue 2, pp. 257-268 (1997).

Physics

2

Scientific paper

We investigate the stability of extra-dimensional spaces after the inflationary period within the framework of canonical quantum gravity. Since the four-dimensional spacetime has expanded to a sufficiently large size, a semiclassical treatment is appropriate. We propose a formulation which takes into account the peculiarity of the inflaton fields that their potential them depends on the gravitational constant. It is applied to the Kaluza - Klein theory with the Einstein - Hilbert action. The result indicates that the internal spaces are not stable.

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