Continuousvariable 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 twomode 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 lowestfrequency 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:

 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 10502947
 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, FuentesSchuller, Ivette, Ericsson, Marie, Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Apostal 70543 04510, Distrito Federal, and Centre for Quantum Computation, DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA. Continuousvariable entanglement sharing in noninertial frames. United States: N. p., 2007.
Web. doi:10.1103/PHYSREVA.76.062112.
Adesso, Gerardo, FuentesSchuller, Ivette, Ericsson, Marie, Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Apostal 70543 04510, Distrito Federal, & Centre for Quantum Computation, DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA. Continuousvariable entanglement sharing in noninertial frames. United States. doi:10.1103/PHYSREVA.76.062112.
Adesso, Gerardo, FuentesSchuller, Ivette, Ericsson, Marie, Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Apostal 70543 04510, Distrito Federal, and Centre for Quantum Computation, DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA. Sat .
"Continuousvariable entanglement sharing in noninertial frames". United States. doi:10.1103/PHYSREVA.76.062112.
@article{osti_21140613,
title = {Continuousvariable entanglement sharing in noninertial frames},
author = {Adesso, Gerardo and FuentesSchuller, Ivette and Ericsson, Marie and Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Apostal 70543 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 twomode 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 lowestfrequency 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 = {10502947},
number = 6,
volume = 76,
place = {United States},
year = {2007},
month = {12}
}