BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Laurent Freidel DTSTART:20220316T144000Z DTEND:20220316T152000Z DTSTAMP:20260423T004547Z UID:PhysBound/9 DESCRIPTION:Title: $w_{1+\\infty}$ Higher spin symmetries in gravity and asymptotic charge dynamics\nby Laurent Freidel as part of Physics @ Boundaries Workshop \n\n\nAbstract\nIn this talk\, I will present an analysis\, based on symme tries\, of Einstein's equation in Asymptotically flat spacetime that simpl ifies the asymptotic gravitational dynamics drastically. I will show that the asymptotic Einstein's equation can be recast as conservations equation s for a Carrollian fluid. These conservation equations contain a spin-zero (the mass)\, spin 1 (the momenta) and spin 2 charge aspects. I will show that the spin 2 conservation equation finally gives a symmetry interpretat ion to the subsub-leading soft theorems. It also reveals a higher spin sy mmetry in gravity acting on the gravitational phase space. If time permits \, I will explain the connection with the Celestial CFT derivation of a gl obal version of the symmetry algebra and the challenges that lie ahead.\n LOCATION:https://researchseminars.org/talk/PhysBound/9/ END:VEVENT END:VCALENDAR