Asymptotic symmetries: from low to high spins

by Dario Francia (PI)

Thursday 28 Feb 2019, 14:30 → 15:30 Europe/Rome

0M03 (Dipartimento di Fisica, M.S. Angelo)

Assigning the asymptotic behaviour of physical observables is part of the definition of a theory that, for gauge theories, may enforce a non-trivial structure of the corresponding asymptotic symmetry group. We shall review the relevance of the latter for spin-one gauge theories and for asymptotically flat gravity, while also exploring its relevance in some less customary scenarios, like higher-spin gauge theories and dual formulations. 

Some emphasis will be placed on the (putative) differences between D=4 and D>4, in an attempt to a critical survey of the tension existing between some dimension-independent results, like Weinberg’s soft theorems, and their interpretation in terms of asymptotic symmetries, until recently most commonly acknowledged to exist only in D=4.

 

2019_02_28_Napoli.pdf