The chaos bound in the near-horizon regions has been studied through the expansions of the metric functions on the horizon. In this paper, we investigate the chaos bound in the near-horizon region and at a certain distance from the horizon of a charged Kiselev black hole. The value of the Lyapunov exponent is accurately calculated by a Jacobian matrix. The angular momentum of a charged particle around the black hole affects not only the exponent, but also the position of the equilibrium orbit. This position gradually moves away from the horizon with the increase of the angular momentum. We find that the bound is violated at a certain distance from the horizon and there is no violation in the near-horizon region when the charge mass ratio of the particle is fixed. The small value of the normalization factor is more likely to cause the violation.

通过在地平线上扩展度量函数，研究了近地平线区域的混沌界限。在本文中，我们研究了近视界区域和距带电基塞廖夫黑洞视界一定距离的混沌边界。Lyapunov 指数的值通过雅可比矩阵精确计算。黑洞周围带电粒子的角动量不仅影响指数，还影响平衡轨道的位置。随着角动量的增加，这个位置逐渐远离地平线。我们发现，当粒子的电荷质量比固定时，在距视界一定距离处违反了界限，而在近视界区域没有违反。归一化因子的值越小越容易导致违规。