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arXiv 2410.03214gr-qchep-th
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浸没于涡旋宇宙中的Kerr黑洞时空下粒子的混沌运动

Chaotic motion of particles in the spacetime of a Kerr black hole immersed in swirling universes

Deshui Cao, Lina Zhang, Songbai Chen, Qiyuan Pan, Jiliang Jing

AI总结:

该研究针对浸没于涡旋宇宙中的Kerr黑洞时空下的粒子运动展开分析,借助多种动力学分析方法证实混沌存在,发现两参数可相互调节混沌发生范围,且吸引域边界存在自相似分形结构,丰富了相关物理内涵。

摘要:

我们研究了浸没于涡旋宇宙中的Kerr黑洞时空下的粒子运动。借助庞加莱截面、快速Lyapunov指数指标、分岔图和吸引域,我们揭示了涡旋参数和自旋参数对粒子运动动力学行为的影响,证实了该背景时空下的粒子运动中存在混沌现象。我们发现,涡旋参数能够改变混沌发生的自旋参数范围,反之亦然。此外我们清晰观测到,无论自旋参数取值如何,该浸没于涡旋宇宙的黑洞时空的吸引子边界上都存在一些自相似分形精细结构。涡旋参数与自旋参数的结合为粒子运动带来了更丰富的物理内涵。

英文摘要:

We investigate the motion of particles in the spacetime of a Kerr black hole immersed in swirling universes. Using the Poincaré section, fast Lyapunov exponent indicator, bifurcation diagram and basins of attraction, we present the effects of the swirling parameter and the spin parameter on the dynamical behaviors of the motion of particles, and confirm the presence of chaos in the motion of particles in this background spacetime. We find that the swirling parameter can change the range of the spin parameter where the chaos occurs, and vice versa. Moreover, we observe clearly that, regardless of the spin parameter, there exist some self-similar fractal fine structures in the basins boundaries of attractors for the spacetime of a black hole immersed in swirling universes. The combination the swirling parameter and the spin parameter provides richer physics in the motion of particles.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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