The spacetime view of the information paradox (CROSBI ID 180701)
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Podaci o odgovornosti
Nikolić, Hrvoje
engleski
The spacetime view of the information paradox
In semiclassical gravity, the final state of black-hole evaporation cannot be described by a pure state. Nevertheless, we point out that the system can be described by a generalized pure state, which is not defined on a 3-dimensional hypersurface but on the 4-dimensional spacetime describing the whole Universe at all times. Unlike the conventional quantum state, such a generalized state treats time on an equal footing with space, which makes it well suited for systems that are both quantum and relativistic. In particular, such a generalized state contains a novel type of information encoded in the correlations between future and past, which avoids the black-hole information paradox.
black-hole information; black-hole evaporation
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Podaci o izdanju
10
2012.
1250024-1-1250024-7
objavljeno
0219-7499
10.1142/S0219749912500244