Black-bounce to traversable wormhole Page 1 Journal of Cosmology and Astroparticle
Physics Black-bounce to traversable wormhole To cite this article: Alex Simpson and Matt …

In the last four decades, different programs have been carried out aiming at understanding
the final fate of gravitational collapse of massive bodies once some prescriptions for the …

While singularities are inevitable in the classical theory of general relativity, it is commonly
believed that they will not be present when quantum gravity effects are taken into account in …

We analyze the geometry of a spherically symmetric black hole with an inner and outer
apparent horizon that is perturbed by spherical null shells of matter. On a classical level we …

This article presents a new model-independent constraint for bouncing black hole
geometries. This constraint, applicable for a physical black hole formed by a collapsing …

We consider a non-static evolving version of the regular'black-bounce'/traversable wormhole
geometry recently introduced in Simpson and Visser (2019 J. Cosmol. Astropart. Phys …

We present a geometric classification of all spherically symmetric spacetimes that could
result from singularity regularization, using a kinematic construction that is both exhaustive …

A gravitationally collapsed object can bounce out from its horizon via a tunnelling process
that violates the classical equations in a finite region. Since tunnelling is a nonperturbative …

This article proposes a generalization of the Oppenheimer-Snyder model which describes a
bouncing compact object. The corrections responsible for the bounce are parameterized in a …

We discuss the consequences of the unique symmetry of de Sitter spacetime. This symmetry
leads to the specific thermodynamic properties of the de Sitter vacuum, which produces a …