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arXiv 2109.05026gr-qchep-th
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存在热涨落时正则黑洞残余的稳定性

Stability of remnants of Bardeen regular black holes in presence of thermal fluctuations

Yawar H. Khan, Sudhaker Upadhyay, Prince A. Ganai

摘要:

本文利用热涨落的概念讨论了正则黑洞的残余。首先,我们在非扩展相空间中导出了熵、Hawking温度、压强、内能、Helmholtz自由能和Gibbs自由能等各种热力学量的平衡值。然后我们讨论了Barnut黑洞的几何热力学(GTD)来研究它的稳定性.其次,我们根据黑洞解的一些已知参数估计了黑洞残余的大小。由于估计黑洞残余物的大小、特征和稳定性可以进一步增加我们对二元碰撞、信息丢失悖论和暗能量的理解,黑洞残余物被认为是由于热涨落而存在的,它给出了黑洞蒸发后留下的稳定质量的想法。我们看到热涨落带来了熵曲线的整体增加。然而,在热涨落的存在下,一个正的扭结,这意味着在熵值的最大增加,发生在一定值的视界,这是完全等于剩余半径。我们观察到,热涨落,这是量子引力的特点,导致在剩余半径附近的热力学量的稳定值。在热涨落存在的情况下,我们导出了各种修正的热力学势,并讨论了黑洞热力学第一定律对Barnesite黑洞的适用性。

英文摘要:

In this paper, we discuss remnants of the Bardeen regular black hole motivated by using the concept of thermal fluctuations. First, we derive the equilibrium values of various thermodynamic quantities like entropy, Hawking temperature, pressure, internal energy, Helmholtz free energy and Gibbs free energy in the non-extended phase space. We then discuss geometrothermodynamics (GTD) of Bardeen black hole to study its stability. Next, we estimate the size of black hole remnant in terms of some known parameters of the black hole solution. Motivated by the fact that estimation of size, characteristics and stability of remnants of black holes could further increase our understanding of binary collisions, information loss paradox and dark energy, the black hole remnant, which gives an idea about stable mass left over after evaporation of black hole, is seen to owe its presence due to thermal fluctuations. We see that the thermal fluctuations bring an overall increase in entropy curve. However, in presence of thermal fluctuations, a positive kink, which signifies a maximum increase in the value of entropy, occurs at a certain value of horizon, which is exactly equal to the remnant radius. We observe that the thermal fluctuations, which are characteristics of quantum gravity, lead to stable values of thermodynamic quantities near the remnant radius. In presence of thermal fluctuations, we then derive various corrected thermodynamic potentials and also discuss the validity of first law of black hole thermodynamics for Bardeen black hole.

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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