Thursday, July 20, 2017

black holes - If Hawking radiation is true why isn't the entire universe glowing?



It says hawking radiation appears due to a particle and anti-particle pair one of which gets sucked in and other one escapes , these particles are said to appear out of nowhere , appear everywhere in the universe and are opposite of each other.


As such in normal universe away from a black hole why doesn't their recombination and Annihilation lead to emission of energy as light or heat like combination of matter and antimatter should?


Why isn't the universe glowing and all of us dead because of the energy from recombination of these particles everywhere as hwaking suggests?




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