Evaluation of nitrogen- and silicon-vacancy defect centres as single photon sources in quantum key distribution
arXiv:1310.1220 · doi:10.1088/1367-2630/16/2/023021
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 and an extrapolation for next-generation sources with enhanced efficiency is discussed.
14 pages, 5 figures