Chaotic particle dynamics near a traversable wormhole throat
- 1Nanjing University of Aeronautics and Astronautics
Abstract
This study investigates the nonlinear dynamics of a test particle near the traversable wormhole throat under an external harmonic potential. One-dimensional radial perturbation analysis shows that the particle is locally linearly stable at the equilibrium position. However, for two-dimensional and high-energy cases, the system exhibits a nonlinear response, triggering significant chaotic dynamics.The analysis indicates that, if the particle is confined on one side of the wormhole, the Poincaré section will still retain Kolmogorov–Arnold–Moser (KAM) tori under extremely high-energy conditions, which is distinct from the integrability to chaos transition triggered near the black hole event horizon under external potential.By studying another set of shape functions, the robustness of the observed phase space structure against different geometric profiles is substantiated. This research demonstrates a specific nonlinear dynamical phenomenon of the traversable wormhole. It provides a new criterion, based on chaotic dynamics, for identifying black hole mimickers in strong-field astrophysical observations.
Versions
Related
- Extracting Energy from a Traversable Wormhole via Magnetic Reconnection: Circular Orbits and the Plunging Region
- How traversable is a traversable wormhole?
- Probing quantum chaos near a wormhole throat with a circular string
- Scalar halos and conical matching for finite-width vortices at a wormhole throat
- Resonant transmission of scalar waves through rotating traversable wormhole
BibTeX
@article{zhao2026chaotic,
title = {{Chaotic particle dynamics near a traversable wormhole throat}},
author = {Xin Zhao and Xing-Kun Zhang and Ya-Peng Hu and Yu-Sen An},
journal = {The European Physical Journal C},
year = {2026},
month = oct,
doi = {10.1140/epjc/s10052-026-16511-4},
url = {https://link.springer.com/article/10.1140/epjc/s10052-026-16511-4},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Chaotic particle dynamics near a traversable wormhole throat
AU - Xin Zhao
AU - Xing-Kun Zhang
AU - Ya-Peng Hu
AU - Yu-Sen An
PY - 2026
DA - 2026/10/26
JO - The European Physical Journal C
DO - 10.1140/epjc/s10052-026-16511-4
UR - https://link.springer.com/article/10.1140/epjc/s10052-026-16511-4
AB - This study investigates the nonlinear dynamics of a test particle near the traversable wormhole throat under an external harmonic potential. One-dimensional radial perturbation analysis shows that the particle is locally linearly stable at the equilibrium position. However, for two-dimensional and high-energy cases, the system exhibits a nonlinear response, triggering significant chaotic dynamics.The analysis indicates that, if the particle is confined on one side of the wormhole, the Poincaré section will still retain Kolmogorov–Arnold–Moser (KAM) tori under extremely high-energy conditions, which is distinct from the integrability to chaos transition triggered near the black hole event horizon under external potential.By studying another set of shape functions, the robustness of the observed phase space structure against different geometric profiles is substantiated. This research demonstrates a specific nonlinear dynamical phenomenon of the traversable wormhole. It provides a new criterion, based on chaotic dynamics, for identifying black hole mimickers in strong-field astrophysical observations.
SN - 1434-6044
SN - 1434-6052
ER -