22 citations · 54 across the 16 of their papers we have counts for
18 papers · 1 filter
The sufficiently trapped surface
Eleni-Alexandra Kontou
Roger Penrose introduced the concept of the trapped surface: a spacelike hypersurface where the two null normals have negative expansion. The trapped surface along with the null co…
Mass and entropy of asymptotically flat eternal quantum black holes in 2D
Jean Alexandre, Eleni-Alexandra Kontou, Diego Pardo Santos +2
Semi-classical dilaton gravity in (1+1)-dimensions remains one of the only arenas where quantum black holes can be exactly constructed, fully accounting for backreaction due to qua…
Penrose inequality for integral energy conditions
Eduardo Hafemann, Eleni-Alexandra Kontou
The classical Penrose inequality, a relation between the ADM mass and the area of any cross section of the black hole event horizon, was introduced as a test of the weak cosmic cen…
A new approach in classical Klein-Gordon cosmology: "Small Bangs", inflation and Dark Energy
Eleni-Alexandra Kontou, Nicolai Rothe
In this work, we analyze the cosmological model in which the expansion is driven by a classical, free Klein-Gordon field on a flat, four-dimensional Friedmann-Lemaître-Robertson-Wa…
Wormhole restrictions from quantum energy inequalities
Eleni-Alexandra Kontou
Wormhole solutions, bridges that connect different parts of spacetime, were proposed early in the history of General Relativity. Soon after, it was shown that all wormholes violate…
A generalization of the Hawking black hole area theorem
Eleni-Alexandra Kontou, Veronica Sacchi
Hawking's black hole area theorem was proven using the null energy condition (NEC), a pointwise condition violated by quantum fields. The violation of the NEC is usually cited as t…