On the creation of an inflationary universe from ``nothing'' in a higher-dimensional theory of gravity with higher-derivative terms

Details On the creation of an inflationary universe from ``nothing'' in a higher-dimensional theory of gravity with higher-derivative terms On the creation of an inflationary universe from ``nothing'' in a higher-dimensional theory of gravity with higher-derivative terms

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phlb..167..301p&link_type=abstract

Physics Letters B, Volume 167, Issue 3, p. 301-306.

Physics

16

Scientific paper

The universe may been created from ``nothing'' as a quasi-de Sitter space-time, by a process of quantum tunnelling. The probability P for such a tunnelling process to occur is proportional to exp(-SE)m where SE is the euclidean action. The maximum probability corresponds to a configuration with SE = 0. This idea can be realized in a higher-dimensional theory of gravity with higher-derivative terms, in which a scalar field φ arises as the inverse radius function of the internal space. Subsequent evolution of the field φ may permit inflation.
The author would like to thank Professor Abdus Salam, the International Atomic Energy Agency and UNESCO for hospitality at the International Centre for theoretical physics, Trieste.

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