Tidal Stretching and Compression in Black Bounce Backgrounds
arXiv:2507.00311 · doi:10.1140/epjc/s10052-025-14837-z
Abstract
Black bounces are compact objects that combine the structures of regular black holes with those of wormholes. These spacetimes exhibit a rich causal structure and can differ fundamentally from usual black holes. In this work, we study the behavior of the tidal forces by considering different black bounce models. To this end, we start with the geodesic deviation equation and the tidal tensor, from which we compute the radial and angular components of the tidal forces. We find that these components are finite throughout the entire spacetime, including at the wormhole throats. Through the components of the displacement vector, we observe that, unlike the Schwarzschild case, a compression effect on bodies may occur in certain regions.
17 pages, 16 figures. Comments are welcome. V2: Some discussions improved. Reference added. Published in EPJC
References in corpus (47)
- Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A
- Tidal Disruption Events
- Regular black holes with a nonlinear electrodynamics source
- A Short Review of Loop Quantum Gravity
- Magnetically charged black holes from non-linear electrodynamics and the Event Horizon Telescope
- Novel black-bounce spacetimes: wormholes, regularity, energy conditions, and causal structure
- Circular motion of neutral test particles in Reissner-Nordström spacetime
- Field sources for Simpson-Visser space-times
- Charged black-bounce spacetimes
- Can different black holes cast the same shadow?
- Gravitational lensing in the Simpson-Visser black-bounce spacetime in a strong deflection limit
- Corrected form of the first law of thermodynamics for regular black holes
- Vaidya spacetimes, black-bounces, and traversable wormholes
- An effective model for the quantum Schwarzschild black hole
- Black hole as a magnetic monopole within exponential nonlinear electrodynamics
- On black bounces, wormholes and partly phantom scalar fields
- Source of black bounces in general relativity
- Black Holes and Covariance in Effective Quantum Gravity
- Nonsingular black hole chemistry
- Complete, Single-Horizon Quantum Corrected Black Hole Spacetime
- Quasinormal modes of a holonomy corrected Schwarzschild black hole
- The shadow of M87* black hole within rational nonlinear electrodynamics
- Regular Black Holes in Rainbow Gravity
- On black bounce space-times in non-linear electrodynamics
- From regular black holes to horizonless objects: quasi-normal modes, instabilities and spectroscopy
- Black bounces in conformal Killing gravity
- Regular multihorizon black holes in gravity with nonlinear electrodynamics
- Black Bounces with multiple throats and anti-throats
- Can a light ray distinguish charge of a black hole in nonlinear electrodynamics?
- Cylindrical black bounces and their field sources
- Tidal forces in dirty black hole spacetimes
- Tidal Forces in Kottler Spacetimes
- On compressive radial tidal forces
- Black holes and covariance in effective quantum gravity: A solution without Cauchy horizons
- Geodesic of nonlinear electrodynamics and stable photon orbits
- Braneworld Black Bounce to Transversable Wormhole
- Superradiant instability of a charged regular black hole
- Tidal forces in parametrized spacetime: Rezzolla-Zhidenko parametrization
- Spherically symmetric and static black bounces with multiple horizons, throats, and anti-throats in four dimensions
- Magnetically charged black-bounce solution via nonlinear electrodynamics in a k-essence theory
- Tidal Forces in Majumdar-Papapetrou Spacetimes
- Black-bounce solutions in a k-essence theory under the effects of bumblebee gravity
- Field Sources for Black-Bounce Solutions: The Case of K-Gravity
- A regular metric does not ensure the regularity of spacetime
- Black bounces and remnants in dilaton gravity
- Good tachyons, bad bradyons: role reversal in Einstein-nonlinear-electrodynamics models
- Sufficient conditions for unbounded superradiance in black hole spacetimes sourced by nonlinear electrodynamics