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Solutions to the Quasi-flatness and Quasi-lambda Problems

John D. Barrow·Joao Magueijo
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Abstract

Big Bang models of the Universe predict rapid domination by curvature, a paradox known as the flatness problem. Solutions to this problem usually leave the Universe exactly flat for every practical purpose. Explaining a nearly but not exactly flat current Universe is a new problem, which we label the quasi-flatness problem. We show how theories incorporating time-varying coupling constants could drive the Universe to a late-time near-flat attractor. A similar problem may be posed with regards to the cosmological constant $Λ$, the quasi-lambda problem, and we exhibit a solution to this problem as well.

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John D. Barrow, Joao Magueijo. 1999-01-05. Solutions to the Quasi-flatness and Quasi-lambda Problems. https://doi.org/10.1016/s0370-2693(99)00008-8

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