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arXiv 2009.02172gr-qc
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Einstein-PMI引力下高维非线性带电AdS黑洞的Joule-Thomson展开

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

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

摘要:

本文研究了具有幂次Maxwell不变源的高维非线性AdS黑洞的Joule-Thomson展开。结果表明,焦耳-汤姆逊系数存在一个零点和一个发散点,分别与转变温度$T_i$和霍金温度的零点相吻合。转化温度随转化压力的增加而单调增加。在高压区,反型温度随维数$D$和非线性参数$s$的增大而减小,随电荷$Q$的增大而增大.低压区的$T_i$随$D$和$s$的增加而增加,随$Q$的增加而减少。反转温度的最小值与临界温度的比值${η_{\rm{BH}}}$不依赖于$Q$,它恢复了当$s=1$时的高维Reissner-Nördstrom AdS黑洞情形.然而,对于$s>1$,随着$D$的增加,它变得越来越小,当$D\rightarrow\infty$。最后,我们发现增加$M$和$s$的质量,或者减少$Q$和$D$的电荷,都能增强等焓曲线,并且$s$对等焓曲线的影响要比其他参数大得多。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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