Distributing entanglement with separable states
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Output type: Journal article
Author list: Peuntinger C., Chille V., Mišta L., Korolkova N., Förtsch M., Korger J., Marquardt C., Leuchs G.
Publisher: American Physical Society
Publication year: 2013
Journal: Physical Review Letters (0031-9007)
Volume number: 111
Issue number: 23
ISSN: 0031-9007
eISSN: 1079-7114
URL: http://api.elsevier.com/content/abstract/scopus_id:84889805146
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Open access status: green
Full text URL: https://arxiv.org/pdf/1304.0504
Abstract
We experimentally demonstrate a protocol for entanglement distribution by a separable quantum system. In our experiment, two spatially separated modes of an electromagnetic field get entangled by local operations, classical communication, and transmission of a correlated but separable mode between them. This highlights the utility of quantum correlations beyond entanglement for the establishment of a fundamental quantum information resource and verifies that its distribution by a dual classical and separable quantum communication is possible. © 2013 American Physical Society.
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