BLACK-HOLE CRYSTALS AS SEEDS OF STRUCTURE FORMATION IN THE EARLY UNIVERSE

It is generally accepted that structure formed in the matter dominated Universe, for obvious reasons. In this paper, we would like to suggest an alternate theory: that structure could have formed in the radiation dominated Universe if it was ''protected'' from destruction. This protection is envisioned as a ''crystal'', of sorts, made up of primordial black holes (PBH's), which form a cavitation into which any matter particles in the nucleosynthesis period of the Universe (around 100 seconds after the Big Bang) could have taken refuge. A sort of oasis in a sea of radiation. Such a scenario could solve several problems in cosmology, namely: how matter got a foot-hold over anti-matter in the Universe; the structure/galaxy formation problem, and possibly suggest ideas on the gamma-ray count and distribution.