Jerzy Kowalski-Glikman

Institute for Theoretical Physics, University of Wroclaw (Wroclaw, Poland)

Curved momentum space and relative locality

Abstract:
There are indications that there might exist a limit of (quantum) gravity coupled to matter, in which local degrees of freedom of the gravitational field are switched off and spacetime is locally flat, while the momentum space of matter degrees of freedom becomes curved. In my talk I will discuss the construction of a theory of interacting particles with curved momentum space. It turns out that for such models absolute locality is replaced in the controllable manner with locality relative to an observer.