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HIDDEN ENTANGLEMENT AND UNITARITY AT THE PLANCK SCALE

Arzano, M; Hamma, A; Severini, S; (2010) HIDDEN ENTANGLEMENT AND UNITARITY AT THE PLANCK SCALE. MOD PHYS LETT A , 25 (6) 437 - 445. 10.1142/S0217732310032603.

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Abstract

Attempts to go beyond the framework of local quantum field theory include scenarios in which the action of external symmetries on the quantum fields Hilbert space is deformed. We show how the Fock spaces of such theories exhibit a richer structure in their multi-particle sectors. When the deformation scale is proportional to the Planck energy, such new structure leads to the emergence of a "planckian" mode-entanglement, invisible to an observer that cannot probe the Planck scale. To the same observer, certain unitary processes would appear non-unitary. We show how entanglement transfer to the additional degrees of freedom can provide a potential way out of the black hole information paradox.

Type:Article
Title:HIDDEN ENTANGLEMENT AND UNITARITY AT THE PLANCK SCALE
DOI:10.1142/S0217732310032603
Keywords:Deformed symmetries, entanglement, black hole information paradox, BLACK-HOLES, INFORMATION, QFT
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Computer Science

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