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Estimation of output channel noise for continuous variable quantum key distribution

Thearle, Oliver; Assad, Syed M.; Symul, Thomas


Estimation of channel parameters is important for extending the range and increasing the key rate of continuous variable quantum key distribution protocols. We propose a new estimator for the channel noise parameter based on the method of moments. The method of moments finds an estimator from the moments of the output distribution of the protocol. This estimator has the advantage of being able to use all of the states shared between Alice and Bob. Other estimators are limited to a smaller...[Show more]

CollectionsANU Research Publications
Date published: 2015-08-20
Type: Journal article
Source: Physical Review A
DOI: 10.1103/PhysRevA.93.042343
Access Rights: Open Access


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