Thermal chaos of a charged dilaton-AdS black hole in the extended phase space

Thermal chaos of a charged dilaton-AdS black hole in the extended phase space
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扩展相空间中带电膨胀子-AdS 黑洞的热混沌

DOI:
10.1140/epjc/s10052-020-7813-1
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发表时间:
2020-02
期刊:
The European Physical Journal C
影响因子:
--
通讯作者:
Jiliang Jing
Jiliang Jing
中科院分区:
其他
文献类型:
--
作者:
Chaoqun Dai;Songbai Chen;Jiliang Jing

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用Melnikov方法研究了扩展相空间中带电强子AdS黑洞的热混沌行为,给出了强子参数对热混沌的影响.结果表明,对于时间扰动,只有当扰动幅度大于某个临界值时,荷电黑洞才会出现热混沌,而对于空间扰动,无论扰动幅度如何,混沌总是存在的.这些行为与其它AdS黑洞的行为相似,可以看作是静态AdS黑洞的共同特征。此外,我们还发现,导致混沌的临界时间扰动幅度增加的介子参数和减少的电荷。这意味着,在时间扰动下,与电荷参数不同,电子子参数的存在使混沌的发生更加困难。
We have studied thermal chaotic behavior in the extended phase space for a charged dilaton-AdS black hole by Melnikov method and present the effect of dilaton parameter on the thermal chaos. Our result show that for the temporal perturbation the thermal chaos in the charged dilaton-AdS black hole occurs only if the perturbation amplitude is larger than certain a critical value, but for the spatially perturbation, the chaos always exists irrespective of perturbation amplitude. These behaviors are similar to those in other AdS black hole, which can be regarded as the common features of the static AdS black holes. Moreover, we also find that the critical temporal perturbation amplitude leading to chaos increases with the dilaton parameter and decreases with the charge. This means that under the temporal perturbation the presence of dilaton parameter makes the onset of chaos more difficult, which differs from that of the charge parameter.
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