Proposed methods of addressing some rate and range limits in quantum cryptography
Reinhard K. Erdmann · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2002
Progress in the last decade has enabled the generation and detection of both single and entangled photons for use in new applications of quantum cryptography, secure key distribution in particular, Nevertheless, fundamental and practical restrictions restrict the implementation to protoype systems. Methods of circumvent certain of those are presented in configurations that retain the features essential to single photon and photon pair signal processing.