Graviton creation in the inflationary universe and the grand unification scale

Details Graviton creation in the inflationary universe and the grand unification scale Graviton creation in the inflationary universe and the grand unification scale

Sep 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982phlb..115..189r&link_type=abstract

Physics Letters B, Volume 115, Issue 3, p. 189-192.

Physics

348

Scientific paper

The creation of gravitons in the inflationary universe and their effects on the 3K photon background are considered. It is shown that the inflationary universe scenario is compatible with existing experimental data on the large scale anisotropy of relic photons only if the energy density of the symmetric vacuum is much less than the Planck energy density, ɛV < 3 × 10-8 Mpl4. This implies an upper bound on the grand unification scale.

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