Noncommutative information is revealed from Hawking radiation as tunneling
State Key Laboratory of Magnetic Resonances and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences - 430071 Wuhan, PRC
2 Center for Cold Atom Physics, Chinese Academy of Sciences - 430071 Wuhan, PRC
3 Department of Physics, Tsinghua University - 100084 Beijing, PRC
Accepted: 15 March 2011
We revisit the tunneling process from a Schwarzschild black hole in the noncommutative spacetime and obtain the nonthermal tunneling probability. In such nonthermal spectrum, the correlations are discovered, which can carry the information about the noncommutativity. Thus this enlightens a way to find the noncommutative information in the Hawking radiation. The entropy is also shown to be conserved in the whole radiation process, which implies that the unitarity is held even for the Hawking radiation from noncommutative black holes.
PACS: 04.70.Dy – Quantum aspects of black holes, evaporation, thermodynamics / 03.67.-a – Quantum information / 02.40.Gh – Noncommutative geometry
© EPLA, 2011