Chaos from the ring string in a Gauss-Bonnet black hole in AdS5 space

Chaos from the ring string in a Gauss-Bonnet black hole in AdS5 space
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AdS5 空间高斯-邦内特黑洞中环弦的混沌

DOI:
10.1103/physrevd.89.086011
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发表时间:
2014-05
期刊:
影响因子:
5
通讯作者:
Ji-Fang Zhang
Ji-Fang Zhang
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Da-Zhu Ma;Jian-Pin Wu;Ji-Fang Zhang

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利用Poincare截面研究了AdS-Gauss-Bonnet(AdS-GB)黑洞中环弦的动力学行为.用数值方法找到了Gauss-Bonnet(GB)参数$\lambda$的一个阈值,在该阈值以下,该动力系统的行为是非混沌的,在该阈值以上,该动力系统的行为逐渐变为混沌.随着GB参数的增大,混沌行为增强。这与AdS-Schwarzschild黑洞的情况不同,后者是弱混沌的。此外,我们证实了我们的研究结果的快速李雅普诺夫指标。
By the Poincare sections, the dynamical behaviors of the ring string in the AdS-Gauss-Bonnet (AdS-GB) black hole are studied. A threshold value of the Gauss-Bonnet (GB) parameter $\lambda$ are found by the numerical method, below which the behavior of this dynamical system is no-chaotic and above which the behavior becomes gradually chaotic. The chaotic behavior becomes stronger with the increases of GB parameter. It is different from the case in the AdS-Schwarzschild black hole, which is weakly chaotic. Furthermore, we confirm our findings by the Fast Lyapunov indicators.
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