CWRU PAT Coffee Agenda

Tuesdays 10:30 - 11:30 | Fridays 11:30 - 12:30

+1 Can scale--dependent cosmology alleviate the $H_0$ tension?.

lxj154 +1

+1 Holographic complexity for black branes with momentum relaxation.

kxp265 +1

Showing votes from 2020-09-04 12:30 to 2020-09-08 11:30 | Next meeting is Friday Aug 29th, 11:30 am.

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gr-qc

  • Can scale--dependent cosmology alleviate the $H_0$ tension?.- [PDF] - [Article]

    Pedro D. Alvarez, Benjamin Koch, Cristobal Laporte, Angel Rincon
     

    Scale--dependence is a common feature to all effective models of quantum gravity. In this paper a cosmological model based on the scale--dependent scenario of gravity is presented. It is argued that such models, where the scale--dependence appears as a correction to the classical $\LCDM$ evolution, have the potential of addressing the tensions between early and late time measurements of $H_0$. After defining criteria to parametrize this tension, we perform a numerical scan over the parameter space of the scale--dependent model, subject to these criteria. In this analysis it is found that, indeed, the tension can be released.

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