# Purification of Single-Photon Entanglement

 Authors: D Salart, O Landry, N Sangouard, N Gisin, H Herrmann, B Sanguinetti, C Simon, W Sohler, R T Thew, A Thomas, H Zbinden Physical Review Letters 104, 180504 (2010) http://dx.doi.org/10.1103/PhysRevLett.104.180504 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. purificationsalart.pdf

# BibTeX Source

@ARTICLE{Salart2010,
author = {Salart, D. and Landry, O. and Sangouard, N. and Gisin, N. and Herrmann,
H. and Sanguinetti, B. and Simon, C. and Sohler, W. and Thew, R.
T. and Thomas, A. and Zbinden, H.},
title = {Purification of Single-Photon Entanglement},
journal = {Physical Review Letters},
year = {2010},
volume = {104},
pages = {180504},
number = {18},
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.
},
doi = {10.1103/PhysRevLett.104.180504},
owner = {cc},
sn = {0031-9007},
timestamp = {2010.08.20},
ut = {WOS:000277417500005}
}