Pure States, Mixed States and Hawking Problem in Generalized Quantum Mechanics

Details Pure States, Mixed States and Hawking Problem in Generalized Quantum Mechanics Pure States, Mixed States and Hawking Problem in Generalized Quantum Mechanics

2004-05-13

arxiv.org/abs/gr-qc/0405069v2

Mod.Phys.Lett. A19 (2004) 2037-2045

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages,no figures,some corrections,new references

Scientific paper

10.1142/S0217732304015312

This paper is the continuation of a study into the information paradox problem started by the author in his earlier works. As previously, the key instrument is a deformed density matrix in quantum mechanics of the early universe. It is assumed that the latter represents quantum mechanics with fundamental length. It is demonstrated that the obtained results agree well with the canonical viewpoint that in the processes involving black holes pure states go to the mixed ones in the assumption that all measurements are performed by the observer in a well-known quantum mechanics. Also it is shown that high entropy for Planck remnants of black holes appearing in the assumption of the Generalized Uncertainty Relations may be explained within the scope of the density matrix entropy introduced by the author previously. It is noted that the suggested paradigm is consistent with the Holographic Principle. Because of this, a conjecture is made about the possibility for obtaining the Generalized Uncertainty Relations from the covariant entropy bound at high energies in the same way as R. Bousso has derived Heisenberg uncertainty principle for the flat space.

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