Rezaei Amir Hossein, Nozari Kourosh
Department of Physics, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
Department of Theoretical Physics, Faculty of Sciences, University of Mazandaran, P. O. Box 47416-95447, Babolsar, Iran.
Sci Rep. 2024 Aug 22;14(1):19475. doi: 10.1038/s41598-024-70308-7.
This paper investigates some implications of mimetic gravity on the black hole thermodynamics. We begin with an analysis of the mimetic action and its relationship to the spacetime curvature, highlighting the field equations and their contributions to the black hole solutions. Then we explore the behavior of various thermodynamic parameters including pressure, temperature and heat capacity, revealing some intriguing features of the system near the event horizon. We analyze also the inversion temperatures, inversion curves and the Joule-Thomson coefficients to enrich our comprehension of thermodynamic phenomena in this context. By extending coordinates close to the event horizon, we study the Joule-Thomson expansion, demonstrating how strong gravitational fields create pressure gradients similar to gas cooling processes. Comparison between mimetic black hole and Schwarzschild black hole in this setup provides a deeper understanding of the unique characteristics of the mimetic gravity.
本文研究了模拟引力对黑洞热力学的一些影响。我们首先分析模拟作用及其与时空曲率的关系，重点介绍场方程及其对黑洞解的贡献。然后我们探讨包括压力、温度和热容量在内的各种热力学参数的行为，揭示事件视界附近系统的一些有趣特征。我们还分析了反转温度、反转曲线和焦耳 - 汤姆逊系数，以丰富我们对这种情况下热力学现象的理解。通过扩展靠近事件视界的坐标，我们研究了焦耳 - 汤姆逊膨胀，展示了强引力场如何产生类似于气体冷却过程的压力梯度。在这种设置下，模拟黑洞与史瓦西黑洞之间的比较提供了对模拟引力独特特性的更深入理解。
