Abstract
A long-standing problem in cosmology has been to understand the origins of density inhomogeneities in the Universe. Calculations involving inhomogeneities have for the most part required the assumption of some initial spectrum of perturbations, which is inserted ‘by hand’. We present here a mechanism for the spontaneous creation of density perturbations during the transition in the early Universe from unconfined quark matter to hadronic matter. The subsequent evolution of these perturbations remains a problem for further study.
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Crawford, M., Schramm, D. Spontaneous generation of density perturbations in the early Universe. Nature 298, 538–540 (1982). https://doi.org/10.1038/298538a0
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DOI: https://doi.org/10.1038/298538a0
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