论文标题

Einstein-PMI重力中高维非电荷广告的焦耳thomson扩展

Joule-Thomson expansion of higher dimensional nonlinearly charged AdS black hole in Einstein-PMI gravity

论文作者

Feng, Zhong-Wen, Zhou, Xia, He, Guansheng, Zhou, Shi-Qi

论文摘要

在本文中,研究了较高尺寸非线性广告黑洞的焦耳 - 汤姆森(Joule-Thomson)扩展,并研究了麦克斯韦不变源。结果表明,焦耳Thomson系数的点为零和一个不同的点,这与反转温度$ t_i $和霍金温度的零点相吻合。反转温度随反转压力单调升高。对于高压区域,反转温度随维度$ d $和非线性参数$ s $降低,而随着电荷$ q $的增加。但是,低压区域的$ t_i $随着$ d $和$ s $的增加而增加,而$ q $则减少。比率$ {η_ {\ rm {bh}}}}} $之间的最低反转温度和临界温度之间的$不取决于$ q $,它恢复了$ s = 1 $时,它会恢复较高维度的Reissner-NördstromADS BlackStrom ADS BLACKSTROM ADS BLACKEN CAD。但是,对于$ s> 1 $,随着$ d $的增加而变得越来越小,并且在$ d \ rightarrow \ infty $时变为常数。最后,我们发现质量$ M $和$ S $的增加,或者减少充电$ Q $和$ d $可以增强Isenthalpic曲线,并且$ s $对Isenthalpic曲线的效果比其他参数要大得多。

In this paper, the Joule-Thomson expansion of the higher dimensional nonlinearly AdS black hole with power Maxwell invariant source is investigated. The results show the Joule-Thomson coefficient has a zero point and a divergent point, which are coincide with the inversion temperature $T_i$ and the zero point of Hawking temperature, respectively. The inversion temperature increases monotonously with inversion pressure. For high-pressure region, the inversion temperature decreases with the dimensionality $D$ and the nonlinearity parameter $s$, whereas it increases with the charge $Q$. However, $T_i$ for low-pressure region increase with $D$ and $s$, while it decreases with $Q$. The ratio ${η_{\rm{BH}}}$ between the minimum of inversion temperature and the critical temperature does not depend on $Q$, it recovers the higher dimensional Reissner-Nördstrom AdS black hole case when $s=1$. However, for $s>1$, it becomes smaller and smaller as $D$ increase and approaches a constant when $D\rightarrow\infty$. Finally, we found that increase of mass $M$ and $s$, or reduce the charge $Q$ and $D$ can enhance the isenthalpic curve, and the effect of $s$ on the isenthalpic curve is much greater than other parameters.

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