Cosmic evolution of non-topological solitons, paper 1

Details Cosmic evolution of non-topological solitons, paper 1 Cosmic evolution of non-topological solitons, paper 1

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989stin...8927608f&link_type=abstract

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Physics

Cosmology, Evaporation, Evolution (Development), Field Theory (Physics), Solitary Waves, Universe, Cooling, Entropy, Particles

Scientific paper

Nontopological solitons are stable field configurations which may be formed in a primordial phase transition. Their cosmic evolution is studied, and the possibility that such objects could contribute significantly to the energy density of the Universe is examined. As the Universe cools, initially all but the largest lumps evaporate into free particles; those which survive may subsequently enter a brief accretion phase before they freeze out at a final size. Although the minimum critical charges which survive depend on particle masses and couplings, researchers develop an analysis which applies to a wide class of models. In most cases, solitons of moderate size survive the evaporation process only if there is a significant charge asymmetry or if they form at a temperature well below their binding energy per charge.

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