Evolution of the cosmological constant

P. J. E. Peebles ()
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P. J. E. Peebles: Princeton University

Nature, 1999, vol. 398, issue 6722, 25-26

Abstract: Supernova observations have indicated that the Universe is expanding faster than the theory of inflation predicts. Some theoretical cosmologists suggest that an exotic form of energy density called quintessence may be responsible. Quintessence began as Einstein's cosmological constant, but if it is not, in fact, constant it may explain why we appeared just when it had the same value as the density of ordinary matter.

Date: 1999
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DOI: 10.1038/17922

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