Efficient quantum secure direct communication with complete Bell‐state measurement

• Published in: Quantum engineering Vol. 3; no. 4
• Main Authors: Gao, Cheng‐Yan, Guo, Peng‐Liang, Ren, Bao‐Cang
• Format: Journal Article
• Language: English
• Published: Hoboken John Wiley & Sons, Inc 01.12.2021
• Subjects: Bell‐state measurement; Degrees of freedom; Detectors; linear optical elements; Optical components; Photons; Quantum efficiency; quantum secure direct communication; temporal‐polarization hyperentanglement

Quantum secure direct communication (QSDC) is a powerful technique of transmitting confidential information directly and securely based on the pre‐established secure quantum channel and block transmission. Here we propose an efficient QSDC protocol using the complete Bell‐state measurement (CBSM) re...