Thursday, October 4, 2012

1210.0107 (Bingjie Xu et al.)

Improve the Maximum Transmission Distance of Four-State Continuous
Variable Quantum Key Distribution by using a Noiseless Linear Amplifier
   [PDF]

Bingjie Xu, Chunming Tang, Hui Chen, Wenzheng Zhang, Fuchen Zhu
A modified four-state CVQKD protocol is proposed to increase the maximum transmission distance and tolerable excess noise in the presence of Gaussian lossy and noisy channel by using a noiseless linear amplifier (NLA). A NLA with amplitude gain g can increase the maximum admission losses by 20log(g) dB.
View original: http://arxiv.org/abs/1210.0107

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