328 citations · 594 across the 3 of their papers we have counts for
3 papers
gr-qc2007★ 29 cited
Coherent states, constraint classes, and area operators in the new spin-foam models
Jonathan Engle, Roberto Pereira
Recently, two new spin-foam models have appeared in the literature, both motivated by a desire to modify the Barrett-Crane model in such a way that the imposition of certain second…
gr-qc2007★ 237 cited
Flipped spinfoam vertex and loop gravity
Jonathan Engle, Roberto Pereira, Carlo Rovelli
We introduce a vertex amplitude for 4d loop quantum gravity. We derive it from a conventional quantization of a Regge discretization of euclidean general relativity. This yields a…
gr-qc2007★ 328 cited
The loop-quantum-gravity vertex-amplitude
Jonathan Engle, Roberto Pereira, Carlo Rovelli
Spinfoam theories are hoped to provide the dynamics of non-perturbative loop quantum gravity. But a number of their features remain elusive. The best studied one -the euclidean Bar…