scholarly journals Longer distance continuous variable quantum key distribution protocol with photon subtraction at the receiver

2019 ◽  
Vol 18 (3) ◽  
Author(s):  
Kyongchun Lim ◽  
Changho Suh ◽  
June-Koo Kevin Rhee
Keyword(s):  
Quantum Key Distribution ◽  
Key Distribution ◽  
Continuous Variable ◽  
Photon Subtraction ◽  
Quantum Key Distribution Protocol

scholarly journals Non-Gaussian postselection and virtual photon subtraction in continuous-variable quantum key distribution

2016 ◽  
Vol 93 (1) ◽  
Author(s):  
Zhengyu Li ◽  
Yichen Zhang ◽  
Xiangyu Wang ◽  
Bingjie Xu ◽  
Xiang Peng ◽  
...  
Keyword(s):  
Quantum Key Distribution ◽  
Virtual Photon ◽  
Key Distribution ◽  
Continuous Variable ◽  
Photon Subtraction ◽  
Non Gaussian

scholarly journals Self-Referenced Continuous-Variable Quantum Key Distribution Protocol

2015 ◽  
Vol 5 (4) ◽  
Author(s):  
Daniel B. S. Soh ◽  
Constantin Brif ◽  
Patrick J. Coles ◽  
Norbert Lütkenhaus ◽  
Ryan M. Camacho ◽  
...  
Keyword(s):  
Quantum Key Distribution ◽  
Key Distribution ◽  
Continuous Variable ◽  
Quantum Key Distribution Protocol

Enhancing the Unidimensional Continuous-Variable Quantum Key Distribution with Virtual Photon Subtraction

2020 ◽  
Vol 59 (9) ◽  
pp. 2939-2950
Author(s):  
Wei Zhao ◽  
Xinchao Ruan ◽  
Yanyan Feng ◽  
Xiaoxue Wang ◽  
Ying Guo ◽  
...  
Keyword(s):  
Quantum Key Distribution ◽  
Virtual Photon ◽  
Key Distribution ◽  
Continuous Variable ◽  
Photon Subtraction

scholarly journals Improving Eight-State Continuous Variable Quantum Key Distribution by Applying Photon Subtraction

2019 ◽  
Vol 9 (7) ◽  
pp. 1333 ◽  
Author(s):  
Qingquan Peng ◽  
Xiaodong Wu ◽  
Ying Guo
Keyword(s):  
Quantum Key Distribution ◽  
Single Photon ◽  
Key Distribution ◽  
Continuous Variable ◽  
Quantum States ◽  
Continuous Variables ◽  
Subtraction Method ◽  
Photon Subtraction ◽  
Channel Loss ◽  
Simulation Results

We propose a new method to effectively improve the performance of a quantum key distribution with eight-state continuous variables by the photon subtraction method. This operation is effective in increasing and distilling Gaussian entanglement between quantum states, and can be easily realized by existing technology. Simulation results show that the channel-loss tolerance of the eight-state continuous variable quantum key distribution (CVQKD) protocol can be extended by the appropriate photon subtraction algorithm; namely, single-photon subtraction.

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