Diffeomorphism Invariant Gauge Theories


Krasnov, K. (2013). Diffeomorphism Invariant Gauge Theories. Perimeter Institute. https://pirsa.org/13070081


Krasnov, Kirill. Diffeomorphism Invariant Gauge Theories. Perimeter Institute, Jul. 26, 2013, https://pirsa.org/13070081


          @misc{ pirsa_13070081,
            doi = {10.48660/13070081},
            url = {https://pirsa.org/13070081},
            author = {Krasnov, Kirill},
            keywords = {},
            language = {en},
            title = {Diffeomorphism Invariant Gauge Theories},
            publisher = {Perimeter Institute},
            year = {2013},
            month = {jul},
            note = {PIRSA:13070081 see, \url{https://pirsa.org}}

Kirill Krasnov University of Nottingham

Talk Type Conference


I will describe a very large class of gauge theories that do not use any external structure such as e.g. a spacetime metric in their construction. When the gauge group is taken to be SL(2) these theories describe interacting gravitons, with GR being just a particular member of a whole family of gravity theories. Taking larger gauge groups one obtains gravity coupled to various matter systems. In particular, I will show how gravity together with Yang-Mills gauge fields arise from one and the same diffeomorphism invariant gauge theory Lagrangian. Finally, I will describe what is known about these theories quantum mechanically.