Status, perspective and three challenges in the asymptotic-safety paradigm for quantum gravity - VIRTUAL

          @misc{ scivideos_PIRSA:23100005,
            doi = {10.48660/23100005},
            url = {https://pirsa.org/23100005},
            author = {Eichhorn, Astrid},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Status, perspective and three challenges in the asymptotic-safety paradigm for quantum gravity - VIRTUAL},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2023},
            month = {oct},
            note = {PIRSA:23100005 see, \url{https://scivideos.org/pirsa/23100005}}
          }
          

Abstract

In my talk, I'll review the key idea underlying asymptotically safe quantum gravity, before giving an overview of the current status and open questions. I'll then spotlight three challenges. The first challenge is how to test quantum gravity and I'll advocate that by linking quantum gravity to particle physics and cosmology, we can probe quantum gravity at all scales. The second challenge is how to connect to other ideas about quantum spacetime and I'll discuss effective asymptotic safety as a way to link to, e.g., string theory. The third challenge is the status of global symmetries and I'll discuss what we know about the preservation of global symmetries in asymptotic safety and what this implies for a broader perspective on the question. --- The presenter will be joining via Zoom for this talk.