The structure of the early universe

Details The structure of the early universe The structure of the early universe

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980sciam.242..118b&link_type=abstract

Scientific American, vol. 242, Apr. 1980, p. 118-128, 178.

Mathematics

Logic

1

Big Bang Cosmology, Evolution (Development), Red Shift, Relativity, Universe, Abundance, Galactic Evolution, Hadrons, Leptons, Microwaves

Scientific paper

The homogeneity and isotropy of the present universe is discussed, considering chaotic cosmology, where the properties of the universe result from evolutionary processes, quiescent cosmology, where initial conditions explain the present structure of the universe, and various smoothing mechanisms. Attention is given to isothermal and adiabatic density fluctuations, the cosmological singularity, matter-antimatter imbalance during the first msec of the universe, and the dominance of each of the gravitational, electromagnetic, weak, and strong forces at various times after the beginning of the universe. It is suggested that the present entropy level of 10 to the 8th power shows that the universe has evolved in an exceedingly regular way from as far back as the first 10 to the -35th sec of its existence.

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