Genuine multipartite entanglement without multipartite correlations

Genuine multipartite entanglement without multipartite correlations

Nonclassical correlations between measurement results make entanglement the essence of quantum physics and the main resource for quantum information applications. Surprisingly, there are n-particle states which do not exhibit n-partite correlations at all but still are genuinely n-partite entangled....

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Bibliographic Details
Main Authors: Schwemmer, Christian, Knips, Lukas, Tran, Minh Cong, de Rosier, Anna, Laskowski, Wiesław, Paterek, Tomasz, Weinfurter, Harald
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2015
Subjects:
DRNTU::Science::Chemistry::Physical chemistry::Quantum chemistry
Online Access:https://hdl.handle.net/10356/105264
http://hdl.handle.net/10220/25996
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Institution: Nanyang Technological University
Language: English
Description
Summary:Nonclassical correlations between measurement results make entanglement the essence of quantum physics and the main resource for quantum information applications. Surprisingly, there are n-particle states which do not exhibit n-partite correlations at all but still are genuinely n-partite entangled. We introduce a general construction principle for such states, implement them in a multiphoton experiment and analyze their properties in detail. Remarkably, even without multipartite correlations, these states do violate Bell inequalities showing that there is no classical, i.e., local realistic model describing their properties.

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