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arXiv 2302.06249gr-qc
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球对称薄壳时空的热力学

Thermodynamics of spherically symmetric thin-shell spacetimes

Demetrios Kotopoulis, Charis Anastopoulos

AI总结:

本文研究球对称薄壳时空的热力学,证明纳入负质量解及其奇点熵项对热力学一致性至关重要,并得出四个热力学相及稳定性条件,支持将熵赋予奇点的猜想。

摘要:

我们分析了爱因斯坦方程的球对称薄壳解的热力学,包括内部质量为负的解。我们表明,纳入这类解对于系统的热力学一致性至关重要:当我们除了正内部质量解的熵的Bekenstein-Hawking项之外,还加入来自负质量解奇点的熵项时,最大能量原理得以适用。随后,热力学分析导出四个不同的热力学相。我们还表明,所有类型的解都可以是热力学稳定的或动力学稳定的,但只有内部质量为零的解可以同时具备两种稳定性。由于我们的大多数结果是解析的,薄壳模型成为探索引力热力学的有用理论范式。我们的结果为支持将熵赋予负质量Schwarzschild时空的奇点,并进而支持Penrose关于将熵赋予奇点的猜想,提供了额外的论据。

英文摘要:

We analyze the thermodynamics of spherically symmetric thin-shell solutions to Einstein's equations, including solutions with negative interior mass. We show the inclusion of such solutions is essential for the thermodynamic consistency of the system: the Maximum Energy Principle applies when we include an entropy term from the singularity of the negative-mass solutions, in addition to the Bekenstein-Hawking term for the entropy of solutions with positive interior mass. Then, the thermodynamic analysis leads to four distinct thermodynamic phases. We also show that all types of solutions can be either thermodynamically stable or dynamically stable, but only solutions with zero interior mass can be both. Since most of our results are analytic, thin shell models emerge as a useful theoretical paradigm for exploring gravitational thermodynamics. Our results provide an additional argument in support of the assignment of entropy to the singularity of negative-mass Schwarzschild spacetimes, and, consequently, to Penrose's conjecture about the assignment of entropy to singularities.

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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