Weak cosmic censorship conjecture and thermodynamics in quintessence AdS black hole under charged particle absorption
Weak cosmic censorship conjecture and thermodynamics in quintessence AdS black hole under charged particle absorption
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带电粒子吸收下典型AdS黑洞的弱宇宙审查猜想与热力学
DOI：
10.1088/1674-1137/43/12/125101
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发表时间：
2019-06
影响因子：
3.6
通讯作者：
Xiao-Xiong Zeng
中科院分区：
文献类型：
--
作者：
Ke-Jian He;Xin-Yun Hu;Xiao-Xiong Zeng
以宇宙学常数为压强，研究了带电粒子吸收下，被精粹暗能量包围的Reissner-Nordstrom-AdS黑洞中的热力学定律和弱宇宙监督猜想.当粒子被黑洞吸收时，热力学第一定律是有效的。然而，对于极端和近极端黑洞，第二定律被违反，因为这些黑洞的熵减小。此外，我们发现极端黑洞在扩展相空间中不改变其组态，这意味着弱宇宙监督猜想是有效的。值得注意的是，在带电粒子吸收的情况下，近极端黑洞可以被过度充电超过极端条件。因此，对于扩展相空间中的近极值黑洞，宇宙监督猜想可能被违反。作为比较，我们还讨论了正规相空间中的第一定律、第二定律和弱宇宙监督猜想，发现它们在这种情况下都成立。
Considering the cosmological constant as the pressure, this study addresses the laws of thermodynamics and weak cosmic censorship conjecture in the Reissner-Nordstrom-AdS black hole surrounded by quintessence dark energy under charged particle absorption. The first law of thermodynamics is found to be valid as a particle is absorbed by the black hole. The second law, however, is violated for the extremal and near-extremal black holes, because the entropy of these black hole decrease. Moreover, we find that the extremal black hole does not change its configuration in the extended phase space, implying that the weak cosmic censorship conjecture is valid. Remarkably, the near-extremal black hole can be overcharged beyond the extremal condition under charged particle absorption. Hence, the cosmic censorship conjecture could be violated for the near-extremal black hole in the extended phase space. For comparison, we also discuss the first law, second law, and the weak cosmic censorship conjecture in normal phase space, and find that all of them are valid in this case.
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