Communication security has to evolve to a higher plane in the face of the threat from the
massive computing power of the emerging quantum computers. Quantum secure direct …

Quantum secure direct communication (QSDC) leverages quantum states to transmit
information securely and reliably over a noisy, lossy, and wiretapped quantum channel. It …

Rapid progress has been made in quantum secure direct communication in recent years.
For practical application, it is important to improve the performances, such as the secure …

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) that allows people to directly transmit
confidential information through insecure channels is an important branch of quantum …

The security of quantum communication is based on the laws of quantum mechanics, which
can resist attacks from any powerful classical and quantum computers. It has great potential …

Security loopholes exploiting the flaws of practical apparatus, especially non-ideal photon
detectors, are pressing issues in practical quantum communication. We propose a simple …

Efficient quantum circuits for arithmetic operations are vital for quantum algorithms. A fault-
tolerant circuit is required for a robust quantum computing in the presence of noise …

We study quantum secure direct communication using a general preshared quantum state
and a generalization of dense coding. In this scenario, Alice is allowed to apply a unitary …