Recent years have witnessed significant progress in quantum communication and quantum
internet with the emerging quantum photonic chips, whose characteristics of scalability …

Since its discovery, the quantum entanglement becomes a promising resource in quantum
communication and computation. However, the entanglement is fragile due to the presence …

Quantum secure direct communication (QSDC) attracts much attention for it can transmit
secret messages directly without sharing a key. In this article, we propose a one-step QSDC …

Quantum secure direct communication (QSDC) based on entanglement can directly transmit
confidential information. However, the inability to simultaneously distinguish the four sets of …

Device-independent quantum secure direct communication (DI-QSDC) can relax the
security assumptions about the devices' internal working, and effectively enhance QSDC's …

Quantum secure direct communication (QSDC) can directly transmit secrete messages
through a quantum channel. Device-independent (DI) QSDC can guarantee the …

Abstract “Device-independent” not only represents a relaxation of the security assumptions
about the internal working of the quantum devices, but also can enhance the security of the …

Rapid development of supercomputers and the prospect of quantum computers are posing
increasingly serious threats to the security of communication. Using the principles of …

Quantum secure direct communication (QSDC) is a unique technique, which supports the
secure transmission of confidential information directly through a quantum channel without …

Quantum secure direct communication (QSDC) that allows people to directly transmit
confidential information through insecure channels is an important branch of quantum …