2010/07/31 by Tomislav Prokopec, Paul Reska · 1 citation
Physics and Astronomy · #astro-ph.CO #gr-qc
paper · pdf · doi:10.1088/1475-7516/2011/03/050
published as JCAP 1103:050,2011 · 41 pages, 11 figures, published version
arxiv created 2011/03/31 · arxiv updated 2011/04/01
We study the correction to the scale invariant power spectrum of a scalar field on de Sitter space from small black holes that formed during a pre-inflationary matter dominated era. The formation probability of such black holes is estimated from primordial Gaussian density fluctuations. We determine the correction to the spectrum by first deriving the Keldysh propagator for a massless scalar field on Schwarzschild-de Sitter space. Our results suggest that the effect is strong enough to be tested -- and possibly even ruled out -- by observations.