This formula has four fundamental constant of nature:
- G- universal gravitational constant.
- c- speed of light.
- k- boltzman constant.
- h- plank constant.
➤The Bekenstein-Hawking entropy or black hole entropy is the amount of entropy that must be assigned to a black hole in order for it to comply with the laws of thermodynamics as they are interpreted by observers external to that black hole. This is particularly true for the first and second laws. Black hole entropy is a concept with geometric root but with many physical consequences. It ties together notions from gravitation, thermodynamics and quantum theory, and is thus regarded as a window into the as yet mostly hidden world of quantum gravity.
It seems to connect quantum mechanics, statistical mechanics, and gravity in simple fashion. This formula hints about a deep theory of quantum gravity, and has motivated lot of research on black holes in the light of quantum gravity.
Stephen Hawking
Prof. Bekenstein
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