78 citations · 465 across the 24 of their papers we have counts for
17 papers · 1 filter
Tachyonic media in analogue models of special relativity
Sundance O. Bilson-Thompson, Scott L. Todd, James Read +2
In sonic models of special relativity, the fact that the sonic medium violates (ordinary) Lorentz symmetry is apparent to observers external to the sonic medium but not to a class…
Particle scattering in a sonic analogue of special relativity
Scott L. Todd, Giacomo Pantaleoni, Valentina Baccetti +1
We investigate a simple toy model of particle scattering in the flat spacetime limit of an analogue-gravity model. The analogue-gravity medium is treated as a scalar field of phono…
Trapped surfaces, energy conditions, and horizon avoidance in spherically-symmetric collapse
Valentina Baccetti, Robert B. Mann, Daniel R. Terno
We consider spherically-symmetric black holes in semiclassical gravity. For a collapsing radiating thin shell we derive a sufficient condition on the exterior geometry that ensures…
Black hole evaporation and semiclassical thin shell collapse
Valentina Baccetti, Sebastian Murk, Daniel R. Terno
In case of spherical symmetry, the assumptions of finite-time formation of a trapped region and regularity of its boundary --- the apparent horizon --- are sufficient to identify t…
Energy-momentum tensor and metric near the Schwarzschild sphere
Valentina Baccetti, Robert B. Mann, Sebastian Murk +1
Regularity of the horizon radius of a collapsing body constrains a limiting form of a spherically-symmetric energy-momentum tensor near it. Its non-zero limit belongs to one…
Do event horizons exist?
Valentina Baccetti, Robert B. Mann, Daniel R. Terno
Event horizons are the defining feature of classical black holes. They are the key ingredient of the information loss paradox which, as paradoxes in quantum foundations, is built o…