958 citations · 6.3k across the 174 of their papers we have counts for
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Discrete quantum gravity: a mechanism for selecting the value of fundamental constants
Rodolfo Gambini, Jorge Pullin
Smolin has put forward the proposal that the universe fine tunes the values of its physical constants through a Darwinian selection process. Every time a black hole forms, a new un…
Loss of coherence from discrete quantum gravity
Rodolfo Gambini, Rafael Porto, Jorge Pullin
We show that a recent proposal for the quantization of gravity based on discrete space-time implies a modification of standard quantum mechanics that naturally leads to a loss of c…
Perturbative evolution of particle orbits around Kerr black holes: time domain calculation
Ramon Lopez-Aleman, Gaurav Khanna, Jorge Pullin
Treating the Teukolsky perturbation equation numerically as a 2+1 PDE and smearing the singularities in the particle source term by the use of narrow Gaussian distributions, we hav…
Novel finite-differencing techniques for numerical relativity: application to black hole excision
Gioel Calabrese, Luis Lehner, David Neilsen +4
We use rigorous techniques from numerical analysis of hyperbolic equations in bounded domains to construct stable finite-difference schemes for Numerical Relativity, in particular…
Consistent discrete gravity solution of the problem of time: a model
Rodolfo Gambini, Rafael Porto, Jorge Pullin
The recently introduced consistent discrete lattice formulation of canonical general relativity produces a discrete theory that is constraint-free. This immediately allows to overc…