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Late-time creation of gravitinos from the vacuum
2000
Physics Letters B
Starting with the vacuum fluctuation, it is known that gravitinos will be created just after inflation, with number density ∼ 10^-2M^3 where M is the mass of the inflaton. Here, we argue that creation may be expected to continue, maintaining about the same number density, until a usually much later epoch. This epoch is either the 'intermediate epoch' when Hubble parameter falls below the gravitino mass, or the reheat epoch if that is earlier. We verify that such late-time creation indeed occurs
doi:10.1016/s0370-2693(00)00156-8
fatcat:roaokmyqlzbgtkoqt4qe5pn3pu