Einstein-Podolsky-Rosen entanglement and steering in two-well Bose-Einstein-condensate ground states

He, Q. Y., Drummond, P. D., Olsen, M. K. and Reid, M. D. (2012) Einstein-Podolsky-Rosen entanglement and steering in two-well Bose-Einstein-condensate ground states. Physical Review A, 86 2: 023626.1-023626.14. doi:10.1103/PhysRevA.86.023626

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Author He, Q. Y.
Drummond, P. D.
Olsen, M. K.
Reid, M. D.
Title Einstein-Podolsky-Rosen entanglement and steering in two-well Bose-Einstein-condensate ground states
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
1094-1622
Publication date 2012-08
Sub-type Article (original research)
DOI 10.1103/PhysRevA.86.023626
Open Access Status File (Publisher version)
Volume 86
Issue 2
Start page 023626.1
End page 023626.14
Total pages 14
Place of publication College Park, MD, United States
Publisher American Physical Society
Collection year 2013
Language eng
Abstract We consider how to generate and detect Einstein-Podolsky-Rosen (EPR) entanglement and the steering paradox between groups of atoms in two separated potential wells in a Bose-Einstein condensate. We present experimental criteria for this form of entanglement and propose experimental strategies for detecting entanglement using two- or four-mode ground states. These approaches use spatial and/or internal modes. We also present higher-order criteria that act as signatures to detect the multiparticle entanglement present in this system. We point out the difference between spatial entanglement using separated detectors and other types of entanglement that do not require spatial separation. The four-mode approach with two spatial and two internal modes results in an entanglement signature with spatially separated detectors, conceptually similar to the original EPR paradox.
Keyword Continuous variable systems
Double-well
Probability relations
Parametric-amplifier
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2013 Collection
 
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