Evaluation of nitrogen- and silicon-vacancy defect centres as single photon sources in quantum key distribution

Authors: Leifgen, Matthias and Schröder, Tim and Gädeke, Friedemann and Riemann, Robert and Métillon, Valentin and Neu, Elke and Hepp, Christian and Arend, Carsten and Becher, Christoph and Lauritsen, Kristian and Benson, Oliver

Abstract: We demonstrate a quantum key distribution (QKD) testbed for room temperature single photon sources based on defect centres in diamond. A BB84 protocol over a short free-space transmission line is implemented. The performance of nitrogen-vacancy (NV) as well as silicon-vacancy defect (SiV) centres is evaluated. An extrapolation for the future applicability of such sources in quantum information processing is discussed.

BibTeX

@article{leifgen2014,
  author = {Leifgen, Matthias and Schröder, Tim and Gädeke, Friedemann and Riemann, Robert and Métillon, Valentin and Neu, Elke and Hepp, Christian and Arend, Carsten and Becher, Christoph and Lauritsen, Kristian and Benson, Oliver},
  title = {Evaluation of nitrogen- and silicon-vacancy defect centres as single photon sources in quantum key distribution},
  journal = {New Journal of Physics},
  volume = {16},
  number = {2},
  pages = {023021},
  doi = {10.1088/1367-2630/16/2/023021},
  url = {http://iopscience.iop.org/article/10.1088/1367-2630/16/2/023021},
  year = {2014},
  month = feb
}