Continuous variable one-sided device independent quantum key distribution
Nathan Walk, Howard M. Wiseman, Timothy C. Ralph · arXiv (Cornell University) · 2014
By extending recently developed entropic uncertainty relations in the continuous variable regime we derive bounds upon the secret key rate of Gaussian modulated continuous variable quantum key distribution protocols in the limit of long key length. For several protocols the bounds obtained in this manner can be shown to be one sided device independent, including a protocol that uses only coherent states. Though the derived uncertainty relation is not tight, and neither are the subsequent key rates, we find that one-sided device independent schemes are experimentally achievable with existing technology for transmission over realistic channels.