Reversible Carnot cycle outside a black hole

Reversible Carnot cycle outside a black hole
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黑洞外的可逆卡诺循环

DOI:
10.1088/1674-1056/18/3/015
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发表时间:
2009-03
期刊:
影响因子:
1.7
通讯作者:
Deng Xi-Hao
Deng Xi-Hao
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Gao Si-Jie;Deng Xi-Hao

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详细研究了史瓦西黑洞外的卡诺循环。我们提出了一个可逆的卡诺循环,其中黑洞是冷库。在我们的模型中,卡诺热机在温度为T1的热储层和霍金温度为TH的黑洞之间运行。通过将普通卡诺循环自然地推广到黑洞系统,我们证明了可逆过程的热效率可以达到最大效率1 - TH/T1。因此,黑洞可以用卡诺循环来确定热力学温度。讨论了黑洞周围大气的作用。我们表明热气氛提供了一个必要的机制,使过程可逆。
A Carnot cycle outside a Schwarzschild black hole is investigated in detail. We propose a reversible Carnot cycle with a black hole being the cold reservoir. In our model, a Carnot engine operates between a hot reservoir with temperature T1 and a black hole with Hawking temperature TH. By naturally extending the ordinary Carnot cycle to the black hole system, we show that the thermal efficiency for a reversible process can reach the maximal efficiency 1 – TH/T1. Consequently, black holes can be used to determine the thermodynamic temperature by means of the Carnot cycle. The role of the atmosphere around the black hole is discussed. We show that the thermal atmosphere provides a necessary mechanism to make the process reversible.
DOI: 10.1103/physrevd.64.084020
发表时间: 2001-06
期刊: Physical Review D
影响因子: 5
作者:
Sijie Gao;R. Wald
通讯作者: Sijie Gao;R. Wald
DOI: 10.1103/physrevd.25.942
发表时间: 1982-02
期刊: Physical Review D
影响因子: 5
作者:
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通讯作者: W. Unruh;R. Wald
DOI: 10.1017/cbo9781139167703
发表时间: 1983
期刊: --
影响因子: --
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通讯作者: C. J. Adkins