caa a22 4500 467887985 CHVBK 20180406152740.0 cr unu---uuuuu 170328e20061101xx s 000 0 eng 10.1007/s10714-006-0344-8 doi (NATIONALLICENCE)springer-10.1007/s10714-006-0344-8 Information recovery from black holes [Elektronische Daten] [Vijay Balasubramanian, Donald Marolf, Moshe Rozali] We argue that if black hole entropy arises from a finite number of underlying quantum states, then any particular such state can be identified from infinity. The finite density of states implies a discrete energy spectrum, and, in general, such spectra are non-degenerate except as determined by symmetries. Therefore, knowledge of the precise energy, and of other commuting conserved charges, determines the quantum state. In a gravitating theory, all conserved charges including the energy are given by boundary terms that can be measured at infinity. Thus, within any theory of quantum gravity, no information can be lost in black holes with a finite number of states. However, identifying the state of a black hole from infinity requires measurements with Planck scale precision. Hence observers with insufficient resolution will experience information loss. Springer Science+Business Media, LLC, 2006 Black holes nationallicence Black hole information nationallicence Balasubramanian Vijay David Rittenhouse Laboratories, University of Pennsylvania, 19104, Philadelphia, PA, USA aut Marolf Donald Physics Department, UCSB, 93106, Santa Barbara, CA, USA aut Rozali Moshe Department of Physics and Astronomy, University of British Columbia, V6T 1Z1, Vancouver, BC, Canada aut General Relativity and Gravitation Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 38/11(2006-11-01), 1529-1536 0001-7701 38:11<1529 2006 38 10714 https://doi.org/10.1007/s10714-006-0344-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10714-006-0344-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Balasubramanian Vijay David Rittenhouse Laboratories, University of Pennsylvania, 19104, Philadelphia, PA, USA aut NATIONALLICENCE 700 1- Marolf Donald Physics Department, UCSB, 93106, Santa Barbara, CA, USA aut NATIONALLICENCE 700 1- Rozali Moshe Department of Physics and Astronomy, University of British Columbia, V6T 1Z1, Vancouver, BC, Canada aut NATIONALLICENCE 773 0- General Relativity and Gravitation Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 38/11(2006-11-01), 1529-1536 0001-7701 38:11<1529 2006 38 10714 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer