Multipartite entanglement and quantum state exchange

Pope, D. T. and Milburn, G. J. (2003) Multipartite entanglement and quantum state exchange. Physical Review A, 67 5: 052107-1-052107-12. doi:10.1103/PhysRevA.67.052107

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Author Pope, D. T.
Milburn, G. J.
Title Multipartite entanglement and quantum state exchange
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
Publication date 2003
Sub-type Article (original research)
DOI 10.1103/PhysRevA.67.052107
Open Access Status File (Publisher version)
Volume 67
Issue 5
Start page 052107-1
End page 052107-12
Total pages 12
Editor B. Crasemen
L. A. Collins
Place of publication College Pk
Publisher The American Physical Society
Collection year 2003
Language eng
Subject C1
240201 Theoretical Physics
780102 Physical sciences
Abstract We investigate multipartite entanglement in relation to the process of quantum state exchange. In particular, we consider such entanglement for a certain pure state involving two groups of N trapped atoms. The state, which can be produced via quantum state exchange, is analogous to the steady-state intracavity state of the subthreshold optical nondegenerate parametric amplifier. We show that, first, it possesses some 2N-way entanglement. Second, we place a lower bound on the amount of such entanglement in the state using a measure called the entanglement of minimum bipartite entropy.
Keyword Optics
Physics, Atomic, Molecular & Chemical
Podolsky-rosen Paradox
Continuous-variables
Density-matrices
Atoms
Teleportation
Separability
Realization
Light
Trap
Q-Index Code C1
Additional Notes DOI: 10.1103/PhysRevA.67.052107 URL: http://link.aps.org/abstract/PRA/v67/e052107

 
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Created: Wed, 15 Aug 2007, 02:27:58 EST