If time is a local observable, then Hawking radiation is unitary (CROSBI ID 622713)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
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Nikolić, Hrvoje
engleski
If time is a local observable, then Hawking radiation is unitary
In the usual formulation of quantum theory, time is a global classical evolution parameter, not a local quantum observable. On the other hand, both canonical quantum gravity (which lacks fundamental time-evolution parameter) and the principle of spacetime covariance (which insists that time should be treated on an equal footing with space) suggest that quantum theory should be slightly reformulated, in a manner that promotes time to a local observable. Such a reformulated quantum theory is unitary in a more general sense than the usual quantum theory. In particular, this promotes the non-unitary Hawking radiation to a unitary phenomenon, which avoids the black-hole information paradox.
time; local observable; unitarity; Hawking radiation
Published as Special Issue of Int. J. Quant. Inf. 12, 1560001 (2014)
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Podaci o prilogu
2014.
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Podaci o skupu
Quantum 2014: Advances in Foundations of Quantum Mechanics and Quantum Information with Atoms and Photons
pozvano predavanje
25.05.2014-31.05.2014
Torino, Italija