Indico has been updated to v3.3. See our blog post for details on this release. (OTG0146394)

July 9, 2020 to January 31, 2025
Europe/Zurich timezone

Is our Universe geometrical after all?

Dec 6, 2022, 3:00 PM
1h 20m


Guilherme Franzmann (Nordita)


After decades, we still lack a proper understanding of the quantum nature of gravity. Nonetheless, we have already seen many theoretical hints that gravity does not easily fit in the quantum mechanical framework. In this talk, I will discuss the issues associated with gravitating vacuum energy and take that as empirical evidence of the breakdown of QFT in the presence of gravity. Then, I will argue for a radical alternative where space(-time) is completely emergent from quantum mechanics alone, defined for finite-dimensional Hilbert spaces. After briefly reviewing how spacetime can be emergent, I will sketch a new research program that establishes experimental signatures to test the emergent nature of spacetime.

Presentation materials