**Venue:** Seminar Room “-1” – Department of Mathematics**Time: **16:00

**Speaker:**Gerardo Morsella (Tor Vergata University - Rome)

**Abstract: **

As shown by Doplicher, Fredenhagen and Roberts, quantum mechanics and general relativity demand that, in order to have an operationally meaningful notion of localization, spacetime has to be described by a certain noncommutative C*-algebra, in the spirit of Connes’ Noncommutative Geometry. I will review this analysis and the development of QFT on this DFR model of quantum spacetime, which has better UV behavior than the one on commutative spacetime, and I will discuss some recent generalization to curved backgrounds with applications to the horizon problem in cosmology and to the analysis of electromagnetic interactions of neutral matter.

**Contact person:** Davide Pastorello