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arXiv · 0811.2953

Purification of single-photon entanglement with linear optics

Nicolas Sangouard·Christoph Simon·Thomas Coudreau·Nicolas Gisin
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Abstract

We show that single-photon entangled states of the form |0>|1>+|1>|0> can be purified with a simple linear-optics based protocol, which is eminently feasible with current technology. Besides its conceptual interest, this result is relevant for attractive quantum repeater protocols.

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Nicolas Sangouard, Christoph Simon, Thomas Coudreau, Nicolas Gisin. 2008-11-18. Purification of single-photon entanglement with linear optics. https://doi.org/10.1103/physreva.78.050301

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