262 citations · 1.4k across the 28 of their papers we have counts for
4 papers · 1 filter
Spinfoams and high performance computing
Pietro Dona, Muxin Han, Hongguang Liu
Numerical methods are a powerful tool for doing calculations in spinfoam theory. We review the major frameworks available, their definition, and various applications. We start from…
Geometry from local flatness in Lorentzian spin foam theories
Pietro Dona
Local flatness is a property shared by all the spin foam models. It ensures that the theory's fundamental building blocks are flat by requiring locally trivial parallel transport.…
Radiative corrections to the Lorentzian EPRL spin foam propagator
Pietro Donà, Pietropaolo Frisoni, Edward Wilson-Ewing
We numerically estimate the divergence of several two-vertex diagrams that contribute to the radiative corrections for the Lorentzian EPRL spin foam propagator. We compute the ampl…
How-To compute EPRL spin foam amplitudes
Pietro Dona, Pietropaolo Frisoni
Spin foam theory is a concrete framework for quantum gravity where numerical calculations of transition amplitudes are possible. Recently, the field became very active, but the ent…