122 citations · 196 across the 7 of their papers we have counts for
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gr-qc2015★ 4 cited
Hessian and graviton propagator of the proper vertex
Atousa Chaharsough Shirazi, Jonathan Engle, Ilya Vilensky
The proper spin-foam vertex amplitude is obtained from the EPRL vertex by projecting out all but a single gravitational sector, in order to achieve correct semi-classical behavior.…
gr-qc2015★ 19 cited
The Lorentzian proper vertex amplitude: Asymptotics
Jonathan Engle, Ilya Vilensky, Antonia Zipfel
In previous work, the Lorentzian proper vertex amplitude for a spin-foam model of quantum gravity was derived. In the present work, the asymptotics of this amplitude are studied in…