Regular Article - Theoretical Physics
Black-hole information puzzle: a generic string-inspired approach
Theoretical Physics Division, Rudjer Bošković Institute, P.O.B. 180, 10002, Zagreb, Croatia
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Published online: 31 January 2008
Given the insight stemming from string theory, the origin of the black-hole (BH) information puzzle is traced back to the assumption that it is physically meaningful to trace out the density matrix over negative-frequency Hawking particles. Instead, treating them as virtual particles necessarily absorbed by the BH in a manner consistent with the laws of BH thermodynamics, and tracing out the density matrix only over physical BH states, complete evaporation becomes compatible with unitarity.
© Springer-Verlag , 2008