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Purification of Single-Photon Entanglement

Herrmann, H.
Sohler, W.
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Published in Physical review letters. 2010, vol. 104, no. 18, p. 180504-1/4
Abstract Single-photon entanglement is a simple form of entanglement that exists between two spatial modes sharing a single photon. Despite its elementary form, it provides a resource as useful as polarization-entangled photons and it can be used for quantum teleportation and entanglement swapping operations. Here, we report the first experiment where single-photon entanglement is purified with a simple linear-optics based protocol. In addition to its conceptual interest, this result might find applications in long distance quantum communication based on quantum repeaters.
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SALART SUBILS, Daniel et al. Purification of Single-Photon Entanglement. In: Physical review letters, 2010, vol. 104, n° 18, p. 180504-1/4. doi: 10.1103/PhysRevLett.104.180504 https://archive-ouverte.unige.ch/unige:11765

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Deposited on : 2010-09-03

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