2004/09/06 | Bekenstein-Hawking公式[Bekenstein-Hawking Formula]
类别(Ω〖物理〗) | 评论(0) | 阅读(57) | 发表于 13:42
The entropy of a black hole is
(1)

where A is the surface area of the event horizon,k is Boltzmann's constant,c is the speed of light,G is the gravitational constant,and is h-bar.For a Schwarzschild black hole,
(2)

where M is the mass of the black hole, so
(3)

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