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Prof. Joey Neilsen@joeyneilsen.bsky.social |
@duetosymmetry.com If Hawking radiation is more like cavity radiation, does it actually require a horizon? Do neutron stars emit Hawking radiation?
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Prof. Joey Neilsen@joeyneilsen.bsky.social |
@duetosymmetry.com If Hawking radiation is more like cavity radiation, does it actually require a horizon? Do neutron stars emit Hawking radiation?
1 replies 0 reposts 0 likes
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Leo C. Stein
@duetosymmetry.com
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If I understand the calculation correctly, there has to be a horizon. There needs to be a certain nontrivial transformation from incoming states to outgoing states; the transformation will be nonunitary because of the horizon (morally because the horizon absorbs quantum information)
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