359 citations · 1.5k across the 43 of their papers we have counts for
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gr-qc2011★ 52 cited
Small Lorentz violations in quantum gravity: do they lead to unacceptably large effects?
Rodolfo Gambini, Saeed Rastgoo, Jorge Pullin
We discuss the applicability of the argument of Collins, Pérez, Sudarsky, Urrutia and Vucetich to loop quantum gravity. This argument suggests that Lorentz violations, even ones th…
gr-qc2011★ 11 cited
Quantum scalar field in quantum gravity: the propagator and Lorentz invariance in the spherically symmetric case
Rodolfo Gambini, Jorge Pullin, Saeed Rastgoo
We recently studied gravity coupled to a scalar field in spherical symmetry using loop quantum gravity techniques. Since there are local degrees of freedom one faces the "problem o…