Experimental Distribution of Entanglement with Separable Carriers. Fedrizzi, A., Zuppardo, M., Gillett, G., G., Broome, M., A., Almeida, M., P., Paternostro, M., White, A., G., & Paterek, T. Physical Review Letters, 111(23):230504, American Physical Society, 12, 2013.
Experimental Distribution of Entanglement with Separable Carriers [link]Website  abstract   bibtex   
The key requirement for quantum networking is the distribution of entanglement between nodes. Surprisingly, entanglement can be generated across a network without direct transfer—or communication—of entanglement. In contrast to information gain, which cannot exceed the communicated information, the entanglement gain is bounded by the communicated quantum discord, a more general measure of quantum correlation that includes but is not limited to entanglement. Here, we experimentally entangle two communicating parties sharing three initially separable photonic qubits by exchange of a carrier photon that is unentangled with either party at all times. We show that distributing entanglement with separable carriers is resilient to noise and in some cases becomes the only way of distributing entanglement through noisy environments.
@article{
 title = {Experimental Distribution of Entanglement with Separable Carriers},
 type = {article},
 year = {2013},
 identifiers = {[object Object]},
 pages = {230504},
 volume = {111},
 websites = {http://link.aps.org/doi/10.1103/PhysRevLett.111.230504},
 month = {12},
 publisher = {American Physical Society},
 day = {4},
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 short_title = {Phys. Rev. Lett.},
 abstract = {The key requirement for quantum networking is the distribution of entanglement between nodes. Surprisingly, entanglement can be generated across a network without direct transfer—or communication—of entanglement. In contrast to information gain, which cannot exceed the communicated information, the entanglement gain is bounded by the communicated quantum discord, a more general measure of quantum correlation that includes but is not limited to entanglement. Here, we experimentally entangle two communicating parties sharing three initially separable photonic qubits by exchange of a carrier photon that is unentangled with either party at all times. We show that distributing entanglement with separable carriers is resilient to noise and in some cases becomes the only way of distributing entanglement through noisy environments.},
 bibtype = {article},
 author = {Fedrizzi, A. and Zuppardo, M. and Gillett, G. G. and Broome, M. A. and Almeida, M. P. and Paternostro, M. and White, A. G. and Paterek, T.},
 journal = {Physical Review Letters},
 number = {23}
}

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