How is it possible that Hawking radiation is equivalent to Unruh radiation?
How is it possible that from two different mismatched theories we get the same answer about black hole radiation? Disrupting the fluctuation modes of quantum fields gives us Hawking radiation. At the same time, the gravitational field gives us Unruh radiation. Both of these phenomena are equivalent for the black hole event horizon, and yet they come from two incomplete fields: quantum physics and general relativity, which we are not able to connect in any way. How do random quantum processes "know" what to do at random to conform to general relativity?
How is it possible that from two different mismatched theories we get the same answer about black hole radiation? Disrupting the fluctuation modes of quantum fields gives us Hawking radiation. At the same time, the gravitational field gives us Unruh radiation. Both of these phenomena are equivalent for the black hole event horizon, and yet they come from two incomplete fields: quantum physics and general relativity, which we are not able to connect in any way. How do random quantum processes "know" what to do at random to conform to general relativity?
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