Entropy | |
Noiseless Linear Amplifiers in Entanglement-Based Continuous-Variable Quantum Key Distribution | |
Yichen Zhang3  Zhengyu Li1  Christian Weedbrook4  Kevin Marshall5  Stefano Pirandola2  Song Yu3  Hong Guo3  | |
[1] State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics Engineering and Computer Science, Center for Quantum Information Technology and Center for Computational Science and Engineering, Peking University, Beijing 100871, |
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关键词: quantum key distribution; continuous-variable quantum key distribution; noiseless linear amplifiers; | |
DOI : 10.3390/e17074547 | |
来源: mdpi | |
【 摘 要 】
We propose a method to improve the performance of two entanglement-based continuous-variable quantum key distribution protocols using noiseless linear amplifiers. The two entanglement-based schemes consist of an entanglement distribution protocol with an untrusted source and an entanglement swapping protocol with an untrusted relay. Simulation results show that the noiseless linear amplifiers can improve the performance of these two protocols, in terms of maximal transmission distances, when we consider small amounts of entanglement, as typical in realistic setups.
【 授权许可】
CC BY
© 2015 by the authors; licensee MDPI, Basel, Switzerland
【 预 览 】
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