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.