Article ID Journal Published Year Pages File Type
8204853 Physics Letters A 2014 5 Pages PDF
Abstract
By employing a nondeterministic noiseless linear amplifier, we propose to increase the maximum transmission distance of continuous-variable quantum key distribution with noisy coherent states. With the covariance matrix transformation, the expression of secret key rate under reverse reconciliation is derived against collective entangling cloner attacks. We show that the noiseless linear amplifier can compensate the detrimental effect of the preparation noise with an enhancement of the maximum transmission distance and the noise resistance.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
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