Metastable dark energy models in light of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>P</mml:mi><mml:mi>l</mml:mi><mml:mi>a</mml:mi><mml:mi>n</mml:mi><mml:mi>c</mml:mi><mml:mi>k</mml:mi></mml:math> 2018 data: Alleviating the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>H</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:math> tension
Weiqiang Yang, Eleonora Di Valentino, Supriya Pan, Spyros Basilakos, Andronikos Paliathanasis
Abstract
We investigate the recently introduced metastable dark energy (DE) models after the final $Planck$ 2018 legacy release. The essence of the present work is to analyze their evolution at the level of perturbations. Our analyses show that both the metastable dark energy models considered in this article, are excellent candidates to alleviate the ${H}_{0}$ tension. In particular, for the present models, $Planck$ 2018 alone can alleviate the ${H}_{0}$ tension within 68% CL. Along with the final cosmic microwave background data from the $Planck$ 2018 legacy release, we also include external cosmological datasets in order to asses the robustness of our findings.