BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Luca Ciambelli (Perimeter Institute) DTSTART:20230322T150000Z DTEND:20230322T160000Z DTSTAMP:20260423T021127Z UID:AnLy/23 DESCRIPTION:Title: Co rner Symmetries in Gravity\nby Luca Ciambelli (Perimeter Institute) as part of AnLy Strings and Fields online seminars\n\n\nAbstract\nIn the las t 7 years\, we have gathered a lot of results pointing toward an underlyin g universal symmetry structure in gravity. I will give an overview of thes e recent results\, focussing in particular on two main features. First\, w e will derive the universal corner symmetry algebra\, which can be regarde d as the algebra of observables in classical gravity. Secondly\, we will p ropose an extension of the gravitational covariant phase space such that a ll diffeomorphism charges are integrable\, albeit the system is still diss ipative. These two ingredients are at the core of the corner proposal\, wh ich is a bottom-up approach to quantum gravity\, based on symmetries. Afte r enunciating and discussing this proposal\, time permitting\, I will ment ion how the geometric degrees of freedom at cuts of null hypersurfaces can be quantized\, and its far-reaching consequences for quantum gravity.\n LOCATION:https://researchseminars.org/talk/AnLy/23/ END:VEVENT END:VCALENDAR