Motions of spinning particles and chaos bound in Reissner-Nordström spacetime
arXiv:2601.03751 · doi:10.1007/JHEP04(2026)205
Abstract
Previous research showed that the chaos bound proposed in \cite{MSS} can be violated under specific conditions within the scalar fields surrounding black holes. In this paper, we explore motions of spinning particles orbiting a Reissner-Nordström black hole and examine whether this bound is violated in the spinor field of this black hole. For the neutral particle, when its spin magnitude surpasses a specific threshold, the value of the exponent exceeds the surface gravity, resulting in a violation of the bound. Given a fixed total angular momentum of the particle, when its spin direction is anti-aligned with the angular momentum direction, the exponent value is greater than that when the two directions are aligned. For the charged particle, taking into account the influence of the electromagnetic force, we find that for relatively large angular momenta, although the electromagnetic force does not change the trend of the exponent's variation with respect to spin and angular momentum, and only modifies its values, it still leads to the violation. Therefore, the chaos bound violations are observed in the spinor field.
18 pages
References in corpus (22)
- Universality in Chaos of Particle Motion near Black Hole Horizon
- Competition between Chaotic and Non-Chaotic Phases in a Quadratically Coupled Sachdev-Ye-Kitaev Model
- Recent progress on the description of relativistic spin: vector model of spinning particle and rotating body with gravimagnetic moment in General Relativity
- On the Chaos Bound in Rotating Black Holes
- Chaos of Particle Motion near the Black Hole with Quasi-topological Electromagnetism
- Circular Motion of Charged Particles near Charged Black Hole
- Verifying the upper bound on the speed of scrambling with the analogue Hawking radiation of trapped ions
- First post-Newtonian -body problem in Einstein-Cartan theory with the Weyssenhoff fluid: Lagrangian and first integrals
- Analytical results for binary dynamics at the first post-Newtonian order in Einstein-Cartan theory with the Weyssenhoff fluid
- Innermost stable circular orbits of charged spinning test particles
- First post-Newtonian -body problem in Einstein-Cartan theory with the Weyssenhoff fluid: equations of motion
- Chaos bound and its violation in charged Kiselev black hole
- Homoclinic orbit and the violation of the chaos bound around a black hole with anisotropic matter fields
- Angular momentum and chaos bound of charged particles around Einstein-Euler-Heisenberg AdS black holes
- Chaotic Motion near Black Hole and Cosmological Horizons
- Dynamics of spinning particles in Reissner-Nordström black hole exterior
- Thermodynamic Stability Versus Chaos Bound Violation in D-dimensional RN Black Holes: Angular Momentum Effects and Phase Transitions
- Chaos and fast scrambling delays of dyonic Kerr-Sen-AdS black hole and its ultra-spinning version
- Causality bounds chaos in geodesic motions
- Chaos Bound and its violation in Black p-brane
- Saturation of Chaos Bound in a Phenomenological Rotating Black Hole--Effective Matter System at Low-Temperature Limit
- Physical constraints on the Maldacena-Shenker-Stanford chaos-bound in black hole spacetimes