100 citations · 338 across the 7 of their papers we have counts for
7 papers · 1 filter
Probing the Big Bang with quantum fields
Abhay Ashtekar, Tommaso De Lorenzo, Marc Schneider
By carrying out a systematic investigation of linear, test quantum fields in cosmological space-times, we show that remain well-defined across the big bang as…
Compact binary coalescences: The subtle issue of angular momentum
Abhay Ashtekar, Tommaso De Lorenzo, Neev Khera
In presence of gravitational radiation, the notion of angular momentum of an isolated system acquires an infinite dimensional supertranslation ambiguity. This fact has been emphasi…
Light Cone Thermodynamics
Tommaso De Lorenzo, Alejandro Perez
We show that null surfaces defined by the outgoing and infalling wave fronts emanating from and arriving at a sphere in Minkowski spacetime have thermodynamical properties that are…
On the volume inside old black holes
Marios Christodoulou, Tommaso De Lorenzo
Black holes that have nearly evaporated are often thought of as small objects, due to their tiny exterior area. However, the horizon bounds large spacelike hypersurfaces. A compell…
Improved Black Hole Fireworks: Asymmetric Black-Hole-to-White-Hole Tunneling Scenario
Tommaso De Lorenzo, Alejandro Perez
A new scenario for gravitational collapse has been recently proposed by Haggard and Rovelli. Presenting the model under the name of black hole fireworks, they claim that the accumu…
Non-singular rotating black hole with a time delay in the center
Tommaso De Lorenzo, Andrea Giusti, Simone Speziale
As proposed by Bambi and Modesto, rotating non-singular black holes can be constructed via the Newman-Janis algorithm. Here we show that if one starts with a modified Hayward black…
On the Effective Metric of a Planck Star
Tommaso De Lorenzo, Costantino Pacilio, Carlo Rovelli +1
Spacetime metrics describing `non-singular' black holes are commonly studied in the literature as effective modification to the Schwarzschild solution that mimic quantum gravity ef…