Hawking's radiation principle is that in the "vacuum" universe, according to Heisenberg's uncertainty principle, a pair of positive and negative virtual particles will be generated out of thin air in an instant, and then disappear in an instant, which conforms to the law of conservation of energy, and is no exception outside the horizon of black holes. Hawking reasoned that if one of the virtual particle pairs generated outside the black hole is attracted and the other escapes, it should be like this: the escaped particle gains energy, and it does not need to be annihilated with its opposite particle. It can escape to infinity, just like a black hole emits particles. This conjecture was later confirmed, and this radiation was named Hawking radiation. Because it takes out energy and absorbs part of the energy of the black hole, the mass of the black hole will gradually become smaller and disappear; It is also to take out the information, so it does not violate the law of information.
Hawking radiation includes photons, neutrons and a small amount of various particles with mass. This has never been observed, because there is evidence that celestial bodies as black holes are surrounded by a large number of hot air masses falling into them. The radiation of these hot gases will completely drown out this weak radiation effect. If the mass of a black hole is m.
Hawking predicted that it would only emit a "body temperature" of 60 Kelvin. So only a very small black hole will emit more radiation. The most dramatic thing is that an isolated black hole that does not absorb anything will slowly radiate its mass, slowly at first, but faster and faster. Finally, at the moment it dies, it will glow like an atomic bomb.
hawking radiation