The cosmological constant problem
Rev. Mod. Phys. 61, 1 – Published 1 January, 1989
DOI: https://doi.org/10.1103/RevModPhys.61.1
Abstract
Astronomical observations indicate that the cosmological constant is many orders of magnitude smaller than estimated in modern theories of elementary particles. After a brief review of the history of this problem, five different approaches to its solution are described.
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