65 citations · 182 across the 7 of their papers we have counts for
7 papers
Closed trapping horizons without singularity
Pierre Binétruy, Alexis Helou, Frédéric Lamy
In gravitational collapse leading to black hole formation, trapping horizons typically develop inside the contracting matter. Classically, an ingoing trapping horizon moves towards…
Horizon quantum fuzziness for non-singular black holes
Andrea Giugno, Andrea Giusti, Alexis Helou
We study the extent of quantum gravitational effects in the internal region of non-singular, Hayward-like solutions of Einstein's field equations according to the formalism known a…
Foliation dependence of black hole apparent horizons in spherical symmetry
Valerio Faraoni, George F. R. Ellis, Javad T. Firouzjaee +2
Numerical studies of gravitational collapse to black holes make use of apparent horizons, which are intrinsically foliation-dependent. We expose the problem and discuss possible so…
Causal Nature and Dynamics of Trapping Horizons in Black Hole Collapse
Alexis Helou, Ilia Musco, John C. Miller
In calculations of gravitational collapse to form black holes, trapping horizons (foliated by marginally trapped surfaces) make their first appearance either within the collapsing…
Dynamics of the four kinds of Trapping Horizons and Existence of Hawking Radiation
Alexis Helou
We work with the notion of apparent/trapping horizons for spherically symmetric, dynamical spacetimes: these are quasi-locally defined, simply based on the behaviour of congruence…
Dynamics of the Cosmological Apparent Horizon: Surface Gravity & Temperature
Alexis Helou
In the context of thermodynamics applied to our cosmological apparent horizon, we explicit in greater details our previous work which established the Friedmann Equations from proje…