Cosmogenesis and the origin of the fundamental length scale

Details Cosmogenesis and the origin of the fundamental length scale Cosmogenesis and the origin of the fundamental length scale

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980nuphb.170..228b&link_type=abstract

Nuclear Physics B, Volume 170, Issue 2, p. 228-264.

Physics

Nuclear Physics

35

Scientific paper

The creation of the universe is regarded as a self-consistent process in which matter is engendered by the space-time varying cosmological gravitational field and vice versa. Abundant production can occur only if the mass of the particles so created is of the order of the Planck mass (= κ-1/2. We conjecture that this is the origin of the fundamental length scale in field theory, as it is encountered, for example, in present efforts towards grandunification. The region of particle production is steady state in character. It ceases when the produced particles decay. The geometry of this steady state is characteristic of a de Sitter space. It permits one to estimate the number of ordinary particles presently observed, N. We find log N = O (mτdecay) = O(g-2) = O(102), with the usual estimate of g = O(10- at the Planck length scale. This is not inconsistent with the experimental estimate N ⋍ O(1090). After production, cosmological history gives way to the more conventional scheme of free expansion. The present paper is a self-contained account of our view of cosmological history and the production of matter in a varying gravitational field. Special care has been taken to describe the vacuum correctly in the present context and to perform the necessary subtractions of zero-point effects.

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