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Old 02-09-2010, 08:29 PM
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CraigS
Unpredictable

CraigS is offline
 
Join Date: Jul 2010
Location: Australia
Posts: 3,023
Quote:
Originally Posted by sjastro View Post
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
Thank you. I'll have to ponder on that for a while & do some more reading. You worded that very carefully, I noticed.

"If these pairs are formed near the event horizon"

I wonder how near "near" can get and;
the radiation emitted by the black hole is also a mystery to me.
More reading to do. Thanks muchly. Cool.

Cheers
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