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Title: Continuous-variable entanglement sharing in noninertial frames

Abstract

We study the distribution of entanglement between modes of a free scalar field from the perspective of observers in uniform acceleration. We consider a two-mode squeezed state of the field from an inertial perspective, and analytically study the degradation of entanglement due to the Unruh effect, in the cases of either one or both observers undergoing uniform acceleration. We find that, for two observers undergoing finite acceleration, the entanglement vanishes between the lowest-frequency modes. The loss of entanglement is precisely explained as a redistribution of the inertial entanglement into multipartite quantum correlations among accessible and inaccessible modes from a noninertial perspective. We show that classical correlations are also lost from the perspective of two accelerated observers but conserved if one of the observers remains inertial.

Authors:
; ;  [1]
  1. Dipartimento di Fisica 'E. R. Caianiello', Universita degli Studi di Salerno, 84081 Baronissi, SA, Italy and Grup de Fisica Teorica, Universitat Autonoma de Barcelona, 08193 Bellaterra, Barcelona (Spain)
Publication Date:
OSTI Identifier:
21140613
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 76; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevA.76.062112; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ACCELERATION; CORRELATIONS; DISTRIBUTION; EXCITED STATES; INFORMATION THEORY; QUANTUM ENTANGLEMENT; QUANTUM MECHANICS; SCALAR FIELDS

Citation Formats

Adesso, Gerardo, Fuentes-Schuller, Ivette, Ericsson, Marie, Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, A-postal 70-543 04510, Distrito Federal, and Centre for Quantum Computation, DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA. Continuous-variable entanglement sharing in noninertial frames. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.76.062112.
Adesso, Gerardo, Fuentes-Schuller, Ivette, Ericsson, Marie, Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, A-postal 70-543 04510, Distrito Federal, & Centre for Quantum Computation, DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA. Continuous-variable entanglement sharing in noninertial frames. United States. doi:10.1103/PHYSREVA.76.062112.
Adesso, Gerardo, Fuentes-Schuller, Ivette, Ericsson, Marie, Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, A-postal 70-543 04510, Distrito Federal, and Centre for Quantum Computation, DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA. Sat . "Continuous-variable entanglement sharing in noninertial frames". United States. doi:10.1103/PHYSREVA.76.062112.
@article{osti_21140613,
title = {Continuous-variable entanglement sharing in noninertial frames},
author = {Adesso, Gerardo and Fuentes-Schuller, Ivette and Ericsson, Marie and Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, A-postal 70-543 04510, Distrito Federal and Centre for Quantum Computation, DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA},
abstractNote = {We study the distribution of entanglement between modes of a free scalar field from the perspective of observers in uniform acceleration. We consider a two-mode squeezed state of the field from an inertial perspective, and analytically study the degradation of entanglement due to the Unruh effect, in the cases of either one or both observers undergoing uniform acceleration. We find that, for two observers undergoing finite acceleration, the entanglement vanishes between the lowest-frequency modes. The loss of entanglement is precisely explained as a redistribution of the inertial entanglement into multipartite quantum correlations among accessible and inaccessible modes from a noninertial perspective. We show that classical correlations are also lost from the perspective of two accelerated observers but conserved if one of the observers remains inertial.},
doi = {10.1103/PHYSREVA.76.062112},
journal = {Physical Review. A},
issn = {1050-2947},
number = 6,
volume = 76,
place = {United States},
year = {2007},
month = {12}
}