title: Local Hamiltonian for spherically symmetric gravity coupled to a scalar field.
abstract: We present a gauge fixing of gravity coupled to a scalar field in spherical symmetry such that the Hamiltonian is an integral over space of a local density. Such a formulation had proved elusive over the years. As in any gauge fixing, it works for a restricted set of initial data. We argue that the set could be large enough to attempt a quantization the could include the important case of an evaporating black hole.
authors.affiliation: Instituto de Física, Facultad de Ciencias, Iguá 4225, esq. Mataojo, Montevideo, Uruguay.
authors.forename: Néstor
authors.initials: N
authors.lastname: Alvarez
authors.forename: Rodolfo
authors.initials: R
authors.lastname: Gambini
authors.forename: Jorge
authors.initials: J
authors.lastname: Pullin