Speaker
Flavio Mercati
(University of Burgos)
Description
I will introduce and motivate the Hopf-algebraic (quantum group) description of isometries in noncommutative spacetimes, emphasizing the quantum nature of transformations between reference frames. In this context, the notion of reference frame itself must acquire quantum properties. I will then overview recent work describing quantum reference frames via quantum groups of frame transformations, both within noncommutative spacetimes and in more general settings. These developments provide new perspectives on the operational meaning of reference frames and observers in quantum gravity.
Author
Flavio Mercati
(University of Burgos)
