Corpus ID: 236318189

Early dark energy in the pre- and post-recombination epochs

  title={Early dark energy in the pre- and post-recombination epochs},
  author={Adria G'omez-Valent and Ziyang Zheng and Luca Amendola and Valeria Pettorino and C. Wetterich},
Dark energy could play a role at redshifts z O(1). Many quintessence models possess scaling or attractor solutions where the fraction of dark energy follows the dominant component in previous epochs of the Universe’s expansion, or phase transitions may happen close to the time of matterradiation equality. A non-negligible early dark energy (EDE) fraction around matter-radiation equality could contribute to alleviate the well-known H0 tension. In this work we constrain the fraction of EDE using… Expand

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