GENERAL RELATIVISTIC QUANTUM PHYSICS: Background independent scattering amplitudes, boundary
formalism, local particles and partial observables|
| Abstract: ||
(i) I present some preliminary results on background independent
calculations of particle
scattering amplitudes. In particular, I discuss the derivation of the
from loop quantum gravity and the spinfoam formalism.
(ii) I illustrate the boundary formulation of quantum field theory, its role
in a background
independent context, and how "particles" emerge in this language.
(iii) More in general, I discuss how systematic physical predictions can be
a general relativistic quantum field theory: I illustrate the notion of
and discuss the issue of the physical significance of the spectrum of these
which controls the interpretation of the area and volume discreteness.
| Talk: ||
Transparencies, Recorded Talk