We study the motion of a ring string in the background of the Bardeen-AdS black hole surrounded by the quintessence dark energy. The effects of the magnetic monopole charge $\beta$, the quintessence state parameter ${\omega }_q$, and the quintessence normalization parameter $a$ on the dynamical behavior of the ring string are respectively analyzed. Our numerical results show that the chaotic behavior of the string essentially becomes stronger with the increase of the quintessence normalization parameter. The conditions for the existence of chaos are distinctly diverse for two different quintessence state parameters. Furthermore, it is found that the magnetic charge does not significantly affect the chaotic behavior of the string in a specific range.

我们研究了被精华暗能量包围的 Bardeen-AdS 黑洞背景中环弦的运动。磁单极电荷的影响$\beta$, 精态参数${\omega }_q$, 和 quintessence 归一化参数$A$分别分析了环弦的动力学行为。我们的数值结果表明，随着 quintessence 归一化参数的增加，弦的混沌行为本质上变得更强。对于两种不同的精态参数，混沌存在的条件明显不同。此外，还发现磁荷在特定范围内不会显着影响弦的混沌行为。