Stable, low-error, and calibration-free polarization encoder for free-space quantum communication

被引：25

作者：

Avesani, Marco ^{[1
]}

Agnesi, Costantino ^{[1
]}

Stanco, Andrea ^{[1
]}

Vallone, Giuseppe ^{[1
,2
,3
]}

Villoresi, Paolo ^{[1
,3
]}

机构：

[1] Univ Padua, Dipartimento Ingn Informaz, Via Gradenigo 68, I-35131 Padua, Italy

[2] Univ Padua, Dipartimento Fis & Astron, Via Marzolo 8, I-35131 Padua, Italy

[3] Ist Foton & Nanotecnol CNR, Via Trasea 7, I-35131 Padua, Italy

来源：

OPTICS LETTERS | 2020年 / 45卷 / 17期

关键词：

KEY DISTRIBUTION-SYSTEM; ROBUST;

D O I：

10.1364/OL.396412

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Polarization-encoded free-space quantum communication requires a quantum state source featuring fast modulation, long-term stability, and a low intrinsic error rate. Here we present a polarization encoder that, contrary to previous solutions, generates predetermined polarization states with a fixed reference frame in free-space. The proposed device does not require calibration either at the transmitter or at the receiver and achieves long-term stability. A proof-of-concept experiment is also reported, demonstrating a quantum bit error rate lower than 0.2% for several hours without any active recalibration. (C) 2020 Optical Society of America

引用

收藏

页码：4706 / 4709

页数：4

相关论文

共 23 条

[1] Simple quantum key distribution with qubit based synchronization and a self-compensating polarization encoder [J].

Agnesi, Costantino ;

Avesani, Marco ;

Calderaro, Luca ;

Stanco, Andrea ;

Foletto, Giulio ;

Zahidy, Mujtaba ;

Scriminich, Alessia ;

Vedovato, Francesco ;

Vallone, Giuseppe ;

Villoresi, Paolo .

OPTICA, 2020, 7 (04) :284-290

[2] All-fiber self-compensating polarization encoder for quantum key distribution [J].

Agnesi, Costantino ;

Avesani, Marco ;

Stanco, Andrea ;

Villoresi, Paolo ;

Vallone, Giuseppe .

OPTICS LETTERS, 2019, 44 (10) :2398-2401

[3] Experimental quantum key distribution with finite-key security analysis for noisy channels [J].

Bacco, Davide ;

Canale, Matteo ;

Laurenti, Nicola ;

Vallone, Giuseppe ;

Villoresi, Paolo .

NATURE COMMUNICATIONS, 2013, 4

[4] THEORY OF POLARIZATION SHIFT KEYING MODULATION [J].

BENEDETTO, S ;

POGGIOLINI, P .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1992, 40 (04) :708-721

[5] Simple and high-speed polarization-based QKD [J].

Grunenfelder, Fadri ;

Boaron, Alberto ;

Rusca, Davide ;

Martin, Anthony ;

Zbinden, Hugo .

APPLIED PHYSICS LETTERS, 2018, 112 (05)

[6] Remote Blind State Preparation with Weak Coherent Pulses in the Field [J].

Jiang, Yang-Fan ;

Wei, Kejin ;

Huang, Liang ;

Xu, Ke ;

Sun, Qi-Chao ;

Zhang, Yu-Zhe ;

Zhang, Weijun ;

Li, Hao ;

You, Lixing ;

Wang, Zhen ;

Lo, Hoi-Kwong ;

Xu, Feihu ;

Zhang, Qiang ;

Pan, Jian-Wei .

PHYSICAL REVIEW LETTERS, 2019, 123 (10)

[7]

Jofre M., 2010, Journal of lightwave technology, V28, P2572, DOI DOI 10.1109/JLT.2010.2056673

[8] Quantum hacking on a free-space quantum key distribution system without measuring quantum signals [J].

Lee, Min Soo ;

Woo, Min Ki ;

Kim, Yong-Su ;

Cho, Young-Wook ;

Han, Sang-Wook ;

Moon, Sung .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2019, 36 (03) :B77-B82

[9] Experimental realization of a reference-frame-independent decoy BB84 quantum key distribution based on Sagnac interferometer [J].

Li, Ya-Ping ;

Chen, Wei ;

Wang, Fang-Xiang ;

Yin, Then-Qiang ;

Zhang, Li ;

Liu, Hang ;

Wang, Shuang ;

He, De-Yong ;

Zhou, Zheng ;

Guo, Guang-Can ;

Han, Zheng-Fu .

OPTICS LETTERS, 2019, 44 (18) :4523-4526

[10] High-speed robust polarization modulation for quantum key distribution [J].

Li, Yang ;

Li, Yu-Huai ;

Xie, Hong-Bo ;

Li, Zheng-Ping ;

Jiang, Xiao ;

Cai, Wen-Qi ;

Ren, Ji-Gang ;

Yin, Juan ;

Liao, Sheng-Kai ;

Peng, Cheng-Zhi .

OPTICS LETTERS, 2019, 44 (21) :5262-5265