scholarly journals Real-time low-frequency vibration phase drift tracking and auto-compensation in phase-coded quantum key distribution system

2007 ◽  
Vol 56 (7) ◽  
pp. 3695
Author(s):  
Guo Bang-Hong ◽  
Lu Yi-Qun ◽  
Wang Fa-Qiang ◽  
Zhao Feng ◽  
Hu Min ◽  
...  
Keyword(s):  
Real Time ◽  
Distribution System ◽  
Quantum Key Distribution ◽  
Low Frequency ◽  
Key Distribution ◽  
Phase Drift ◽  
Low Frequency Vibration

scholarly journals Real-time compensation of phase drift for phase-encoded quantum key distribution systems

2011 ◽  
Vol 56 (22) ◽  
pp. 2305-2311 ◽  
Author(s):  
LiJun Zhang ◽  
YongGang Wang ◽  
ZhenQiang Yin ◽  
Wei Chen ◽  
Yang Yang ◽  
...  
Keyword(s):  
Real Time ◽  
Quantum Key Distribution ◽  
Distribution Systems ◽  
Key Distribution ◽  
Phase Drift

High speed quantum key distribution system supports one-time pad encryption of real-time video

2006 ◽  
Author(s):  
Alan Mink ◽  
Xiao Tang ◽  
LiJun Ma ◽  
Tassos Nakassis ◽  
Barry Hershman ◽  
...  
Keyword(s):  
Real Time ◽  
Distribution System ◽  
Quantum Key Distribution ◽  
High Speed ◽  
Key Distribution

scholarly journals The design and realization of continuous-variable quantum key distribution system based on real-time shot noise variance monitoring

2017 ◽  
Vol 66 (2) ◽  
pp. 020301
Author(s):  
Cao Zheng-Wen ◽  
Zhang Shuang-Hao ◽  
Feng Xiao-Yi ◽  
Zhao Guang ◽  
Chai Geng ◽  
...  
Keyword(s):  
Real Time ◽  
Shot Noise ◽  
Distribution System ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Continuous Variable ◽  
Noise Variance

High-Speed Quantum Key Distribution System for 1-Mbps Real-Time Key Generation

2012 ◽  
Vol 48 (4) ◽  
pp. 542-550 ◽  
Author(s):  
Akihiro Tanaka ◽  
Mikio Fujiwara ◽  
Ken-ichiro Yoshino ◽  
Seigo Takahashi ◽  
Yoshihiro Nambu ◽  
...  
Keyword(s):  
Real Time ◽  
Distribution System ◽  
Quantum Key Distribution ◽  
High Speed ◽  
Key Distribution ◽  
Key Generation

scholarly journals Critical side channel effects in random bit generation with multiple semiconductor lasers in a polarization-based quantum key distribution system

2017 ◽  
Vol 25 (17) ◽  
pp. 20045 ◽  
Author(s):  
Heasin Ko ◽  
Byung-Seok Choi ◽  
Joong-Seon Choe ◽  
Kap-Joong Kim ◽  
Jong-Hoi Kim ◽  
...  
Keyword(s):  
Semiconductor Lasers ◽  
Distribution System ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Side Channel ◽  
Channel Effects

scholarly journals Demonstration of high-speed and low-complexity continuous variable quantum key distribution system with local local oscillator

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shengjun Ren ◽  
Shuai Yang ◽  
Adrian Wonfor ◽  
Ian White ◽  
Richard Penty
Keyword(s):  
Distribution System ◽  
Repetition Rate ◽  
Quantum Key Distribution ◽  
Optimization Technique ◽  
Key Distribution ◽  
Local Oscillator ◽  
Continuous Variable ◽  
Noise Model ◽  
System Level ◽  
Excess Noise

AbstractWe present an experimental demonstration of the feasibility of the first 20 + Mb/s Gaussian modulated coherent state continuous variable quantum key distribution system with a locally generated local oscillator at the receiver (LLO-CVQKD). To increase the signal repetition rate, and hence the potential secure key rate, we equip our system with high-performance, wideband devices and design the components to support high repetition rate operation. We have successfully trialed the signal repetition rate as high as 500 MHz. To reduce the system complexity and correct for any phase shift during transmission, reference pulses are interleaved with quantum signals at Alice. Customized monitoring software has been developed, allowing all parameters to be controlled in real-time without any physical setup modification. We introduce a system-level noise model analysis at high bandwidth and propose a new ‘combined-optimization’ technique to optimize system parameters simultaneously to high precision. We use the measured excess noise, to predict that the system is capable of realizing a record 26.9 Mb/s key generation in the asymptotic regime over a 15 km signal mode fibre. We further demonstrate the potential for an even faster implementation.

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