Spin Foams from Canonical Quantum Gravity! | with Bianca Dittrich
One of the reasons for which describing the quantum properties of spacetime is extremely complicated is that, while slicing our four-dimensional universe into three-dimensional spacial slices and applying the standard canonical quantisation procedure, one has to bear in mind the huge symmetry group realised by diffeomorphisms. Spin foams represent a natural way of implementing path integral techniques into a quantum gravitational setting, so that amplitudes among properly characterised spin networks can be computed. Today, Dr. Bianca Dittrich will explain such an interesting approach to Davide De Biasio, member of the ISQG outreach activity team.
Bianca Dittrich is a German theoretical physicist known for her contributions to loop quantum gravity and the spin foam approach to quantum gravity. She has been a faculty member at Perimeter Institute for Theoretical Physics in Waterloo, Ontario, Canada since 2012. She is also currently an adjunct professor at the University of Guelph and the University of Waterloo.
[adapted from Wikipedia]