Non-minimally coupled scalar fields and the initial value problem in quantum gravity

Details Non-minimally coupled scalar fields and the initial value problem in quantum gravity Non-minimally coupled scalar fields and the initial value problem in quantum gravity

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phlb..225..227k&link_type=abstract

Physics Letters B, Volume 225, Issue 3, p. 227-232.

Physics

24

Scientific paper

The canonical quantization scheme for general relativity including a non-minimally coupled scalar field is investigated. It is demonstrated in detail how the signature of the Wheeler-DeWitt equation is changed thereby. This obscures the interpretation of the initial value problem in quantum gravity. A homogeneous and isotropic minisuperspace model is discussed and it is shown that it can become elliptical in certain regions of configuration space leading to the phenomenon of phase space tunnelling.

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