论文信息 - Unidimensional continuous-variable quantum key distribution with imperfect detector

Unidimensional continuous-variable quantum key distribution with imperfect detector

We report a method to improve the performance of unidimensional continuous-variable quantum key distribution with imperfect detector by adding a parameter-adjustable optical amplifier, where the optimal performance can approach the scenario with a perfect detector.

Yichen Zhang | Song Yu | Hong Guo | Luyu Huang

[1] Mei Li,et al. Continuous-variable QKD over 50 km commercial fiber , 2017, Quantum Science and Technology.

[2] Seth Lloyd,et al. Gaussian quantum information , 2011, 1110.3234.

[3] Eleni Diamanti,et al. Distributing Secret Keys with Quantum Continuous Variables: Principle, Security and Implementations , 2015, Entropy.

[4] C. Caves. Quantum limits on noise in linear amplifiers , 1982 .

[5] Vladyslav C. Usenko,et al. Unidimensional continuous-variable quantum key distribution , 2015, 1504.07093.

[6] Eleni Diamanti,et al. Experimental demonstration of long-distance continuous-variable quantum key distribution , 2012, Nature Photonics.