44 citations · 127 across the 6 of their papers we have counts for
5 papers · 1 filter
A New Class of Group Field Theories for 1st Order Discrete Quantum Gravity
Daniele Oriti, Tamer Tlas
Group Field Theories, a generalization of matrix models for 2d gravity, represent a 2nd quantization of both loop quantum gravity and simplicial quantum gravity. In this paper, we…
A group field theory for 3d quantum gravity coupled to a scalar field
Laurent Freidel, Daniele Oriti, James Ryan
We present a new group field theory model, generalising the Boulatov model, which incorporates both 3-dimensional gravity and matter coupled to gravity. We show that the Feynman di…
Spin Foam Models of Quantum Spacetime
Daniele Oriti
Spin foam models are a new approach to a formulation of quantum gravity which is fully background independent, non-perturbative, and covariant, in the spirit of path integral formu…
Causality in spin foam models for quantum gravity
Etera R. Livine, Daniele Oriti
We describe how the Barrett-Crane spin foam model defines transition amplitudes for quantum gravity states and how causality can be consistently implemented in it.
Boundary conditions for the spinor field in Rindler spacetime and the quantum field theoretical basis of the Unruh effect
Daniele Oriti
We analyse the quantization procedure of the spinor field in the Rindler spacetime, showing the boundary conditions that should be imposed to the field, in order to have a well pos…