Duality and Infrared Phenomena in Einstein's Gravity

In this talk I will describe a phenomenon akin to Electric-Magnetic duality in Einstein's gravity. I will show that a new type of "magnetic" dual gravitational charges generate redundant symmetry transformations which are not part of the standard group of diffeomorphisms. General Relativity is therefore shown to possess an internal gauge symmetry of the metric which reveals, in turn, a wide class of new IR phenomena.

Note that this will be an *in-person seminar*, people are encouraged to attend. We will also stream on Zoom - the link will be sent by email.