1207.6028 (Rodolfo Gambini et al.)

Spherically symmetric gravity coupled to a scalar field with a local
Hamiltonian: the complete initial-boundary value problem using metric
variables    [PDF]

Rodolfo Gambini, Jorge Pullin

We discuss 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. In a previous paper we had presented it using Ashtekar's new variables. Here we study it in metric variables. We specify completely the initial-boundary value problem for ingoing Gaussian pulses.

View original: http://arxiv.org/abs/1207.6028