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Journal Article

Distributing Entanglement with Separable States

MPS-Authors
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Peuntinger,  Christian
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Chille,  Vanessa
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Foertsch,  Michael
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Korger,  Jan
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Marquardt,  Christoph
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Leuchs,  Gerd
Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Peuntinger, C., Chille, V., Mista Jr., L., Korolkova, N., Foertsch, M., Korger, J., et al. (2013). Distributing Entanglement with Separable States. PHYSICAL REVIEW LETTERS, 111(23): 230506. doi:10.1103/PhysRevLett.111.230506.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-66D3-8
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.