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Information-preserving black holes still do not preserve baryon number and other effective global quantum numbers

Dejan Stojkovic·Glenn D. Starkman·Fred C. Adams
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Abstract

It has been claimed recently that the black hole information-loss paradox has been resolved: the evolution of quantum states in the presence of a black hole is unitary and information preserving. We point out that, contrary to some claims in literature, information-preserving black holes still violate baryon number and any other quantum number which follows from an effective (and thus approximate) or anomalous symmetry.

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Dejan Stojkovic, Glenn D. Starkman, Fred C. Adams. 2006-04-17. Information-preserving black holes still do not preserve baryon number and other effective global quantum numbers. https://doi.org/10.1142/s0218271805007875

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