Improvement of Self-Referenced Continuous Variable Quantum Key Distribution Using Optical Amplifier

被引：3

作者：

Gong Feng ^{[1
]}

Yang Xin ^{[1
]}

Wang Tianyi ^{[1
]}

机构：

[1] Guizhou Univ, Coll Big Data & Informat Engn, Guiyang 550025, Guizhou, Peoples R China

来源：

LASER & OPTOELECTRONICS PROGRESS | 2019年 / 56卷 / 21期

关键词：

quantum optics; continuous variable; quantum key distribution; optical amplifier; reference pulse; phase noise;

D O I：

10.3788/LOP56.212702

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The transmission distance of a self-referenced continuous variable quantum key distribution (SR-CV-QKD) protocol still needs to be improved. Therefore, this study proposes an optical amplifier to improve the system and effectively compensate for the attenuation of phase noise caused by reference pulse. The secret key rate is derived through security analysis. Simulation results based on practical parameters show that adding an amplifier can improve the performance of the SR-CV-QM) protocol with a weak reference pulse and extend the maximum transmission distance.

引用

页数：6

共 22 条

[1] Efficient quantum key distribution secure against no-signalling eavesdroppers [J].

Acin, Antonio ;

Massar, Serge ;

Pironio, Stefano .

NEW JOURNAL OF PHYSICS, 2006, 8

[2]

Bennett C H, 1981, IEEE INT C COMP SYST, P175

[3] QUANTUM CRYPTOGRAPHY BASED ON BELL THEOREM [J].

EKERT, AK .

PHYSICAL REVIEW LETTERS, 1991, 67 (06) :661-663

[4]

Fossier S, 2009, J PHYS B ATOM MOL PH, V12

[5] Continuous variable quantum cryptography using coherent states [J].

Grosshans, F ;

Grangier, P .

PHYSICAL REVIEW LETTERS, 2002, 88 (05) :4

[6] Asymmetric-Channel Quantum Key Distribution Based on Heralded Single-Photon Sources [J].

He Yefeng ;

Song Chang ;

Li Dongqi ;

Kang Danna .

ACTA OPTICA SINICA, 2018, 38 (03)

[7] Long-distance continuous-variable quantum key distribution by controlling excess noise [J].

Huang, Duan ;

Huang, Peng ;

Lin, Dakai ;

Zeng, Guihua .

SCIENTIFIC REPORTS, 2016, 6

[8] Quantum hacking of a continuous-variable quantum-key-distribution system using a wavelength attack [J].

Huang, Jing-Zheng ;

Weedbrook, Christian ;

Yin, Zhen-Qiang ;

Wang, Shuang ;

Li, Hong-Wei ;

Chen, Wei ;

Guo, Guang-Can ;

Han, Zheng-Fu .

PHYSICAL REVIEW A, 2013, 87 (06)

[9] Preventing calibration attacks on the local oscillator in continuous-variable quantum key distribution [J].

Jouguet, Paul ;

Kunz-Jacques, Sebastien ;

Diamanti, Eleni .

PHYSICAL REVIEW A, 2013, 87 (06)

[10]

Leverrier A, 2010, PHYS REV A, V81

← 1 2 3 →