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Solutions to the Quasi-flatness and Quasi-lambda Problems

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arxiv astro-ph/9811073 v2 pith:RPFTWGX3 submitted 1998-11-04 astro-ph gr-qchep-th

classification astro-phgr-qchep-th
keywords problemuniverseexactlyflatquasi-flatnessquasi-lambdasolutionsattractor
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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 $\Lambda$, the quasi-lambda problem, and we exhibit a solution to this problem as well.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. New analysis of SNeIa Pantheon Catalog: Variable speed of light as an alternative to dark energy

    astro-ph.CO 2024-12 reject novelty 6.0 of 10

    A variable-speed-of-light model with a modified Lemaître redshift formula fits the Pantheon supernova catalog with H0 ≈ 47 and no dark energy.

  2. Alleviating the Hubble Tension via Cosmological Time Dilation in the meVSL Model

    physics.gen-ph 2025-09 reject novelty 3.0 of 10

    The meVSL model's parameter b reduces the baryon drag sound horizon, raising inferred H0, and changes the cosmological time-dilation exponent to n=1-b/4; the paper forecasts SN sample sizes to detect this.

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