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arXiv · 2110.05657

From black-bounce to traversable wormhole, and beyond

Alex Simpson
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Abstract

Key results from the literature pertaining to a class of nonsingular black hole mimickers are explored. The family of candidate spacetimes is for now labelled the `black-bounce' family, stemming from the original so-called `Simpson--Visser' spacetime in static spherical symmetry. All model geometries are analysed through the lens of standard general relativity, are globally free from curvature singularities, pass all weak-field observational tests, and smoothly interpolate between regular black holes and traversable wormholes. The discourse is segregated along geometrical lines, with candidate spacetimes each belonging to one of: static spherical symmetry, spherical symmetry with dynamics, and stationary axisymmetry.

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Alex Simpson. 2021-10-12. From black-bounce to traversable wormhole, and beyond. https://arxiv.org/abs/2110.05657

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