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Early dark energy and the screening mechanism

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arxiv 2205.15693 v3 pith:WW2MWJTC submitted 2022-05-31 gr-qc hep-th

H. Mohseni Sadjadi , V. Anari This is my paper
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keywords darkearlyenergylatescreeningtimeuniversecomponent
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In the early Universe, dark energy may have a non-negligible contribution. If this dark energy corresponds to an early cosmological constant, it leads to a late-time huge dark energy density which is much larger than what is expected for the current expansion of the Universe. Using a conformal coupling of the quintessence to the dark matter, and based on the screening models, we propose a process to reduce the early dark energy to its ultimate value in the late time. Early and late time dark energies can be unified in a single component, in this way.

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Cited by 4 Pith papers

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

  1. The $H_0$ world cup. II. A comprehensive competition between proposed Hubble tension solutions

    astro-ph.CO 2026-07 conditional novelty 6.0 of 10

    Against a common 2025-26 dataset (Planck PR4, ACT DR6, SPT-3G, DESI DR2, Pantheon+), early dark energy and early modified gravity models win the H0 competition (~3σ residual tension), while radiation and late-time sol...

  2. Mass-Varying Dark Matter Induced Scalarization and Scalar Clouds around Black Holes

    gr-qc 2026-06 unverdicted novelty 6.0 of 10

    Scalar clouds around black holes in mass-varying dark matter halos exist only for quantized scalar-dark matter couplings set by halo parameters such as compactness.

  3. The $H_0$ World Cup. I. Summary of the baseline group stage results

    astro-ph.CO 2026-07 conditional novelty 5.0 of 10

    In a systematic head-to-head analysis, early dark energy and early modified gravity models reduce the Hubble tension to about 3σ and are favored over ΛCDM, while radiation and late-time alternatives are not.

  4. Disentangling cosmic distance tensions with early and late dark energy

    astro-ph.CO 2026-04 unverdicted novelty 5.0 of 10

    Early dark energy resolves CMB-BAO tension and, combined with thawing quintessence, reduces overall cosmological tensions without phantom crossing.

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