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Where has all the information gone?

H. D. Zeh
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Abstract

The existence of spacetime singularities is irrelevant for the irreversible appearance of black holes. However, confirmation of the latter's unitary dynamics would require the preparation of a coherent superposition of a tremendous number of appropriate ``Everett worlds''.

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H. D. Zeh. 2005-07-12. Where has all the information gone?. https://doi.org/10.1016/j.physleta.2005.05.065

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