Novel continuous-variable quantum secure direct communication and its security analysis. (27th August 2019)

• Record Type: Journal Article
• Authors: Chai, Geng; Cao, Zhengwen; Liu, Weiqi; Zhang, Minghui; Liang, Kexin; Peng, Jinye
• Is Part Of: Laser physics letters. Volume 16:Number 9(2019:Sep.)
• Publication Date: 2019-08-27
• Subjects: continuous-variable -- quantum secure direct communication (QSDC) -- security analysis -- light intensity; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-202X/ab3a2b
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: Quantum secure direct communication (QSDC) allows secret messages to be directly communicated over a quantum channel; its further development could lead to many practical applications. In this paper, we propose a novel continuous-variable (CV)-based QSDC which could be compatible with fully developed optical telecommunication technologies to minimize the implementation costs. Through a security analysis we show that the proposed scheme can effectively resist an eavesdropper's attacks on the light intensity. Furthermore, our work should inspire the improvement, development and application of CV-based QSDC.