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arXiv 1904.09548gr-qc
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Bardeen-AdS黑洞的焦耳-汤姆逊展开

Joule-Thomson expansion of the Bardeen-AdS black holes

Cong Li, Pengzhang He, Ping Li, Jian-Bo Deng

摘要:

在扩展相空间中研究了Bardeen-AdS黑洞的Joule-Thomson展开过程.首先,我们得到焦耳-汤姆逊系数,并发现焦耳-汤姆逊系数的发散点与温度的零点重合。从焦耳-汤姆逊系数的零点出发,得到了反演曲线。得到了最小转化温度和相应的质量。此外,还计算了Bardeen-AdS黑洞的最小反转与临界温度的比值.在$T$ - $P$图中得到了等焓曲线,并由反转曲线确定了冷却-加热区。我们得到了一个有趣的现象,即黑洞始终处于加热过程中。同样的现象也可以从带电的AdS黑洞中得到。

英文摘要:

The Joule-Thomson expansion process is studied for Bardeen-AdS black holes in the extended phase space. Firstly, we get Joule-Thomson coefficient and find that the divergent point of Joule-Thomson coefficient coincides with the zero point of temperature. The inversion curves are also obtained from the zero point of Joule-Thomson coefficient. Then the minimum inversion temperature and the corresponding mass are obtained. In addition, the ratio between minimum inversion and critical temperature for Bardeen-AdS black holes is also calculated. We obtain the isenthalpic curve in $T$-$P$ graph and demonstrate the cooling-heating region by the inversion curve. An interesting phenomenon we get is that black hole is always in heating process. The same phenomenon can be also obtained from the charged AdS black holes.

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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