69 citations · 130 across the 2 of their papers we have counts for
2 papers
gr-qc2019★ 69 cited
Numerical study of the Lorentzian Engle-Pereira-Rovelli-Livine spin foam amplitude
Pietro Dona, Marco Fanizza, Giorgio Sarno +1
The Lorentzian EPRL spin foam amplitude for loop quantum gravity is a multi-dimensional non-compact integral of highly oscillating functions. Using a method based on the decomposit…
gr-qc2017★ 61 cited
SU(2) graph invariants, Regge actions and polytopes
Pietro Donà, Marco Fanizza, Giorgio Sarno +1
We revisit the the large spin asymptotics of 15j symbols in terms of cosines of the 4d Euclidean Regge action, as derived by Barrett and collaborators using a saddle point approxim…