2024/04/03 by Xiangjie Li, Yuanbin Cheng, Li, Xiangjie +6
Computer Science · #Quantum Information and Cryptography
paper · pdf · doi:10.48550/arxiv.2404.02787
Quantum secure direct communication (QSDC) guarantees both the security and reliability of information transmission using quantum states. One-photon-interference QSDC (OPI-QSDC) is a technique that enhances the transmission distance and ensures secure point-to-point information transmission, but it requires complex phase locking technology. This paper proposes a mixed-encoding one-photon-interference QSDC (MO-QSDC) protocol that removes the need for phase locking technology. Numerical simulations demonstrate that the MO-QSDC protocol could also beat the PLOB bound.