Constructing Quantum Spacetime


Dittrich, B. (2017). Constructing Quantum Spacetime. Perimeter Institute. https://pirsa.org/17040008


Dittrich, Bianca. Constructing Quantum Spacetime. Perimeter Institute, Apr. 26, 2017, https://pirsa.org/17040008


          @misc{ pirsa_17040008,
            doi = {},
            url = {https://pirsa.org/17040008},
            author = {Dittrich, Bianca},
            keywords = {Other},
            language = {en},
            title = {Constructing Quantum Spacetime},
            publisher = {Perimeter Institute},
            year = {2017},
            month = {apr},
            note = {PIRSA:17040008 see, \url{https://pirsa.org}}


General relativity taught us that space time is dynamical and quantum theory posits that dynamical objects are quantum. Hence the Newtonian notion of space time as a passive stage where physics takes place needs to be replaced by a notion of quantum space time which is interacting with all other quantum matter fields.

I will present recent developments that aim at constructing quantum space time. In particular I will explain how  topological quantum field theories give rise to new quantum geometry realizations and how these serve as starting points  for the construction of a  dynamics  of quantum gravity, which is consistent over all scales.  Such a dynamics will then determine the properties of quantum space time.