Trans-Planckian wimpzillas

@article{Kolb2007TransPlanckianW,
  title={Trans-Planckian wimpzillas},
  author={Edward W Kolb and A. A. Starobinsky and I. I. Tkachev},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2007},
  volume={2007},
  pages={005 - 005}
}
Two previously proposed conjectures—gravitational trans-Planckian particle creation in the expanding universe, and the existence of ultraheavy stable particles with masses up to the Planck scale (wimpzillas)—are combined in a proposal for trans-Planckian particle creation of wimpzillas. This new scenario leads to a huge enhancement in their production compared to mechanisms put forward earlier. As a result, it requires the trans-Planckian particle creation parameter to be rather small to avoid… 
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