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
Journal:Physical Review Letters 104, 180504 (2010)
DOI:http://dx.doi.org/10.1103/PhysRevLett.104.180504
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.
File: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}
}