Speaker
Julio Arrechea
(Institute of Astrophysics of Andalusia)
Description
I will show that the repulsive effects associated to the zero-point energies of quantum
fields are capable of supporting ultracompact stars that overcome the compactness
limits present in general relativity for any sphere in hydrostatic equilibrium. These
objects are self-consistent solutions in semiclassical gravity that incorporate
the backreaction of the renormalized stress-energy tensor (RSET) of quantum fields
in vacuum. We arrive at stars of striking qualitative agreement through two in-
dependent modelings of the RSET, evidencing the generality and robustness of
this result. The main physical properties of these novel black hole mimickers are
reviewed.
Primary authors
Julio Arrechea
(Institute of Astrophysics of Andalusia)
Dr
Carlos Barceló
Dr
Raúl Carballo-Rubio
Prof.
Luis J. Garay
