Boundaries and corners of gravitational subsystems allow the construction of non-trivial Noether charges generating infinite-dimensional symmetries, which have been advocated as a new promising tool to understand quantum gravity. In this talk I will focus on classical properties of these symmetries, with the goals of explaining how they appear, how they provide a description of non-local observables, and how physical prescriptions are required in order to remove ambiguities in their construction.
De Maïté Dupuis
De Johannes Thürigen
De Antônio Duarte Pereira
De Sumati Surya
De Riccardo Martini
De Raimar Wulkenhaar
De Valentin Bonzom
De Gaëtan Borot
De Timothy Budd
De Jan Ambjorn
De Laurent Baulieu
De François David
De Reiko Toriumi
De Thomas Krajewski
De Simone Speziale
De Albert Schwarz
De Marc Levine
De Claudio Dappiaggi
