Tue, 02.07.2024 14:00

Are there observable consequences of planckian discreteness?

A Planck scale inflationary era—in a quantum gravity theory predicting discreteness of quantum geometry at the fundamental scale—is compatible with observed features in the cosmic microwave background and allows for a hotter big bang which could produce Planckian black holes with an abundance of the order of magnitude needed to explain dark matter.

If dark matter is really made of such stuff it will be the darkest of all candidates in the sense  of being the most elusive to direct observation. I will review the previous motivation and describe a possible observation protocol using quantum interferometry recently proposed. 



Speaker: Alejandro Perez (University of Aix-Marseille)


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