期刊
SCIENCE
卷 296, 期 5572, 页码 1436-1439出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1070462
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We propose a cosmological model in which the universe undergoes an endless sequence of cosmic epochs that begin with a bang and end in a crunch. Temperature and density at the transition remain finite. Instead of having an inflationary epoch, each cycle includes a period of slow accelerated expansion (as recently observed) followed by contraction that produces the homogeneity, flatness, and energy needed to begin the next cycle.
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