Deterministic Quantum Key Distribution Using Gaussian-Modulated Squeezed States

A continuous variable ping-pong scheme, which is utilized to generate deterministic private key, is proposed. The proposed scheme is implemented physically by using Ganssian-modulated squeezed states. The deterministic char- acteristic, i.e., no basis reconciliation between two parties, leads a near...

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Bibliographic Details
Published inCommunications in theoretical physics Vol. 56; no. 10; pp. 664 - 668
Main Author 何广强 朱俊 曾贵华
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.10.2011
Subjects
传输信号
压缩态
密钥分配方案
调制
进攻策略
连续变量
量子密钥分发
高斯
Online AccessGet full text
ISSN0253-6102
1572-9494
DOI10.1088/0253-6102/56/4/12

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Summary:A continuous variable ping-pong scheme, which is utilized to generate deterministic private key, is proposed. The proposed scheme is implemented physically by using Ganssian-modulated squeezed states. The deterministic char- acteristic, i.e., no basis reconciliation between two parties, leads a nearly two-time efficiency comparing to the standard quantum key distribution schemes. Especially, the separate control mode does not need in the proposed scheme so that it is simpler and more available than previous ping-pong schemes. The attacker may be detected easily through the fidelity of the transmitted signal, and may not be successful in the beam splitter attack strategy.
Bibliography:A continuous variable ping-pong scheme, which is utilized to generate deterministic private key, is proposed. The proposed scheme is implemented physically by using Ganssian-modulated squeezed states. The deterministic char- acteristic, i.e., no basis reconciliation between two parties, leads a nearly two-time efficiency comparing to the standard quantum key distribution schemes. Especially, the separate control mode does not need in the proposed scheme so that it is simpler and more available than previous ping-pong schemes. The attacker may be detected easily through the fidelity of the transmitted signal, and may not be successful in the beam splitter attack strategy.
Gaussian-modulated squeezed state, quantum key distribution, deterministic private key
HE Guang-Qiang , ZHU Jun and ZENG Gui-Hua （National Key Laboratory on Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200240, China）
11-2592/O3
ISSN:0253-6102
1572-9494
DOI:10.1088/0253-6102/56/4/12