385 citations · 1.3k across the 33 of their papers we have counts for
33 papers
Phase spaces in field theory: Reduction vs. resolution
Aldo Riello, Michele Schiavina
In this note we review the concept of phase space in classical field theory, discussing several variations on the basic notion, as well as the relation between them. In particular…
Beyond Noether: A Covariant Study of Poisson-Lie Symmetries in Low Dimensional Field Theory
Florian Girelli, Christopher Pollack, Aldo Riello
We explore global Poisson-Lie (PL) symmetries using a Lagrangian, or "covariant phase space" approach, that manifestly preserves spacetime covariance. PL symmetries are the classic…
Renormalization of conformal infinity as a stretched horizon
Laurent Freidel, Aldo Riello
In this paper, we provide a comprehensive study of asymptotically flat spacetime in even dimensions . We analyze the most general boundary condition and asymptotic symmetr…
Null Hamiltonian Yang-Mills theory: Soft symmetries and memory as superselection
Aldo Riello, Michele Schiavina
Soft symmetries for Yang-Mills theory are shown to correspond to the residual Hamiltonian action of the gauge group on the Ashtekar-Streubel phase space, which is the result of a p…
Hamiltonian gauge theory with corners: constraint reduction and flux superselection
Aldo Riello, Michele Schiavina
We study gauge theories on spacetime manifolds with a codimension- submanifold with boundary. We characterise the reduced phase space of the theory whenever it is described by a…
Edge modes without edge modes
Aldo Riello
We discuss gauge theories of the Yang-Mills kind in finite regions with boundaries, and in particular the definition of the corresponding quasi-local degrees of freedom and their g…