Quote:
Originally Posted by CraigS
Thanks. Steven's reply takes precedence over mine.
Steven:
i) how does this Hawking Radiation propagate (the mechanism) ? and;
ii) information can escape a BH .. so how ? The same as (i) above ?
Cheers
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Particle/antiparticle pairs that are predicted in QFT and experimentally verified by the Casimir experiment.
If these pairs are formed near the event horizon of a black hole, conservation of energy is still preserved as the particle/antiparticle pair are created and destroyed very rapidly. However if one the particles (the one with negative energy or energy less than the ground state) is pulled into the event horizon energy is no longer conserved as the other particle escapes.
The black hole emits Hawking radiation to preserve the conservation of energy. The black hole emits radiation with energy that is equal to the mass of the particle that passes through the horizon.
It's hard to explain the information trail with Hawking radiation.
Hopefully this will help.
http://en.wikipedia.org/wiki/Black_h...mation_paradox
Regards
Steven