THE SPACETIME VIEW OF THE INFORMATION PARADOX
2012 ◽
Vol 10
(02)
◽
pp. 1250024
◽
Keyword(s):
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 three-dimensional hypersurface but on the four-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.
2020 ◽
Vol 1690
◽
pp. 012145
2002 ◽
Vol 11
(10)
◽
pp. 1537-1540
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Keyword(s):
2001 ◽
Vol 16
(supp01c)
◽
pp. 1001-1004
Keyword(s):
2019 ◽
Vol 28
(12)
◽
pp. 1950160
2017 ◽
Vol 34
(19)
◽
pp. 195002
◽
2015 ◽
Vol 626
◽
pp. 012028
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