爱因斯坦-高斯-波奈引力中具有准拓扑电磁学的 D 维染色 AdS 黑洞的三重点和相变

IF 1.5 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
Ping-Hui Mou, 平辉 牟, Qing-Quan Jiang, 青权 蒋, Ke-Jian He, 柯腱 何, Guo-Ping Li and 国平 李
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引用次数: 0

摘要

通过将负宇宙学常数Λ视为热力学压力,我们研究了在爱因斯坦-高斯-波奈(EGB)引力下具有准拓扑电磁学的D维dyonic AdS黑洞(BHs)的热力学和相变。结果表明,与范德华(vdW)液体/气体相变类似的小/大黑洞相变在任何时空维度上都始终存在。有趣的是,我们还发现这个 BH 系统在 6 维情况下表现出更复杂的相结构,而在其他维度下却没有这种相结构。具体地说,在 D = 6 的情况下,我们观察到在一个特定的参数区域出现了小/中/大 BH 相变,并自然地出现了三重点。此外,当磁荷关闭时,我们仍然只在6维时空观测到小/中/大BH相变和三重点,这与之前的结果一致。然而,对于在爱因斯坦-伯恩-因费尔德(EBI)引力中具有准拓扑电磁学的双子 AdS BH,Li 等人[Phys. Rev. D105 104048 (2022)]观测到的由两条独立共存曲线组成的新相结构在 EGB 引力中消失了。这意味着这种新相位结构与引力理论密切相关,似乎与类拓扑电磁学效应无关。此外,在临界点附近计算出的临界指数值也与均场论相同。最后,我们得出结论,这些发现将为我们深入了解EGB引力下具有准拓扑电磁学的双子AdS BH的奇妙热力学性质提供一些启示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Triple points and phase transitions of D-dimensional dyonic AdS black holes with quasitopological electromagnetism in Einstein–Gauss–Bonnet gravity
By considering the negative cosmological constant Λ as a thermodynamic pressure, we study the thermodynamics and phase transitions of the D-dimensional dyonic AdS black holes (BHs) with quasitopological electromagnetism in Einstein–Gauss–Bonnet (EGB) gravity. The results indicate that the small/large BH phase transition that is similar to the van der Waals (vdW) liquid/gas phase transition always exists for any spacetime dimensions. Interestingly, we then find that this BH system exhibits a more complex phase structure in 6-dimensional case that is missed in other dimensions. Specifically, it shows for D = 6 that we observed the small/intermediate/large BH phase transitions in a specific parameter region with the triple point naturally appeared. Moreover, when the magnetic charge turned off, we still observed the small/intermediate/large BH phase transitions and triple point only in 6-dimensional spacetime, which is consistent with the previous results. However, for the dyonic AdS BHs with quasitopological electromagnetism in Einstein–Born–Infeld (EBI) gravity, the novel phase structure composed of two separate coexistence curves observed by Li et al. [Phys. Rev. D105 104048 (2022)] disappeared in EGB gravity. This implies that this novel phase structure is closely related to gravity theories, and seems to have nothing to do with the effect of quasitopological electromagnetism. In addition, it is also true that the critical exponents calculated near the critical points possess identical values as mean field theory. Finally, we conclude that these findings shall provide some deep insights into the intriguing thermodynamic properties of the dyonic AdS BHs with quasitopological electromagnetism in EGB gravity.
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来源期刊
Chinese Physics B
Chinese Physics B 物理-物理:综合
CiteScore
2.80
自引率
23.50%
发文量
15667
审稿时长
2.4 months
期刊介绍: Chinese Physics B is an international journal covering the latest developments and achievements in all branches of physics worldwide (with the exception of nuclear physics and physics of elementary particles and fields, which is covered by Chinese Physics C). It publishes original research papers and rapid communications reflecting creative and innovative achievements across the field of physics, as well as review articles covering important accomplishments in the frontiers of physics. Subject coverage includes: Condensed matter physics and the physics of materials Atomic, molecular and optical physics Statistical, nonlinear and soft matter physics Plasma physics Interdisciplinary physics.
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