Continuous-Variable Quantum Secure Direct Communication Based on Gaussian Mapping

被引：63

作者：

Cao, Zhengwen ^{[1
]}

Wang, Lei ^{[1
]}

Liang, Kexin ^{[1
]}

Chai, Geng ^{[1
]}

Peng, Jinye ^{[1
]}

机构：

[1] Northwest Univ, Sch Informat Sci & Technol, Lab Quantum Informat & Technol QIT, Xian 710127, Peoples R China

来源：

PHYSICAL REVIEW APPLIED | 2021年 / 16卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Gaussian distribution - Quantum communication - Modulation - Quantum cryptography - Light transmission;

D O I：

10.1103/PhysRevApplied.16.024012

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Quantum secure direct communication (QSDC) realizes the transmission of secret messages directly in a quantum channel. A continuous -variable-(CV) based quantum-communication system allows high-speed, large-capacity information transmission in optical telecommunication systems. In this work, we propose a QSDC protocol based on Gaussian mapping. As for Gaussian modulation, the designed Gaussian-mapping scheme effectively solves the problem, which results from the nonuniformity of the secret-message bit stream, and is applicable to different modulation variances. The system performance analysis shows that the proposed scheme can realize inerrant Gaussian modulation of secret messages, and secure transmission of messages under information theory. Moreover, our work hopes to stimulate discussion on experimental realization and practical advance of CV-QSDC protocol.

引用

页数：10

共 39 条

[31] Quantum secure direct communication with high-dimension quantum superdense coding [J].

Wang, C ;

Deng, FG ;

Li, YS ;

Liu, XS ;

Long, GL .

PHYSICAL REVIEW A, 2005, 71 (04)

[32] Multi-step quantum secure direct communication using multi-particle Green-Horne-Zeilinger state [J].

Wang, C ;

Deng, FG ;

Long, GL .

OPTICS COMMUNICATIONS, 2005, 253 (1-3) :15-20

[33] Faithful Entanglement Purification for High-Capacity Quantum Communication with Two-Photon Four-Qubit Systems [J].

Wang, Guan-Yu ;

Li, Tao ;

Ai, Qing ;

Alsaedi, Ahmed ;

Hayat, Tasawar ;

Deng, Fu-Guo .

PHYSICAL REVIEW APPLIED, 2018, 10 (05)

[34] Quantum secure direct communication based on order rearrangement of single photons [J].

Wang, Jian ;

Zhang, Quan ;

Tang, Chao-jing .

PHYSICS LETTERS A, 2006, 358 (04) :256-258

[35]

Xia Y, 2005, J KOREAN PHYS SOC, V47, P753

[36] Novel Multiparty Controlled Bidirectional Quantum Secure Direct Communication Based on Continuous-variable States [J].

Yu, Zhen-Bo ;

Gong, Li-Hua ;

Wen, Ru-Hong .

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2016, 55 (03) :1447-1459

[37] Controlled Quantum Secure Direct Communication by Using Four Particle Cluster States [J].

Zhang, Ling-Ling ;

Zhan, You-Bang ;

Zhang, Qun-Yong .

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2009, 48 (10) :2971-2976

[38] Device-independent quantum secure direct communication against collective attacks [J].

Zhou, Lan ;

Sheng, Yu-Bo ;

Long, Gui-Lu .

SCIENCE BULLETIN, 2020, 65 (01) :12-20

[39] Measurement-device-independent quantum secure direct communication [J].

Zhou, ZengRong ;

Sheng, YuBo ;

Niu, PengHao ;

Yin, LiuGuo ;

Long, GuiLu ;

Hanzo, Lajos .

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2020, 63 (03)

← 1 2 3 4 →