17 citations · 24 across the 7 of their papers we have counts for
4 papers · 1 filter
Minimum lifetime of a black hole
Eugenio Bianchi, Matthew Brandsema, Kenneth Czuprynski +1
We derive bounds on the lifetime of an evaporating black hole. The minimum lifetime bound follows from energy conservation and purification, within the framework of `asymptotically…
Toller matrices and the Feynman in spinfoams
Eugenio Bianchi, Chaosong Chen, Mauricio Gamonal
We study the analytic properties and three equivalent representations of the Toller matrices which appear in the causal formulation of spinfoam transition amplitudes fo…
On Radiative Fluxes and Coulombic Charges in the Balance Law for Black Hole Evaporation
Eugenio Bianchi, Daniel E. Paraizo
In asymptotically-flat spacetimes, there is a clear distinction between radiative fluxes and Coulombic charges. Using the Wald-Zoupas prescription, we identify the classical radiat…
Causal spinfoam vertex for 4d Lorentzian quantum gravity
Eugenio Bianchi, Chaosong Chen, Mauricio Gamonal
We introduce a new causal spinfoam vertex for d Lorentzian quantum gravity. The causal data are encoded in Toller -matrices, which add to Wigner -matrices $T^{(+)}+T^{(-)}…