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7–12 Sept 2022
Municipal theatre
Europe/Athens timezone

Barrow holographic dark energy and a possible reduction of the Hubble tension

9 Sept 2022, 12:50
20m
Municipal theatre

Municipal theatre

Mantzarou 5, Corfu 491 00

Speaker

Prof. Mariusz Dabrowski (National Center for Nuclear Research)

Description

I will make some short reminiscent about the geometrical idea of Barrow entropy for black holes and its cosmological horizon applications in the context of dark energy. I will relate it to some other nonextensive entropies such as Renyi and Tsallis – the former being formally related to that of Barrow. Finally, I will show that, amazingly, Barrow holographic dark energy gives a strong Bayesian evidence against ΛCDM and can also weaken
the Hubble tension.

Presentation materials