31 citations · 59 across the 4 of their papers we have counts for
4 papers
Spatially asymptotic S-matrix from general boundary formulation
Daniele Colosi, Robert Oeckl
We construct a new type of S-matrix in quantum field theory using the general boundary formulation. In contrast to the usual S-matrix the space of free asymptotic states is located…
Relational evolution of a simple quantum Hamiltonian model
Daniele Colosi
We study the quantum dynamics of a time reparametrization invariant system with a vanishing Hamiltonian. The evolution of the physical degrees of freedom of the system is described…
S-matrix at spatial infinity
Daniele Colosi, Robert Oeckl
We provide a new method to construct the S-matrix in quantum field theory. This method implements crossing symmetry manifestly by erasing the a priori distinction between in- and o…
Two point function for a simple general relativistic quantum model
Daniele Colosi
We study the quantum theory of a simple general relativistic quantum model of two coupled harmonic oscillators and compute the two-point function following a proposal first introdu…