Concurrence provides us an effective approach to quantify entanglement, which is quite
important in quantum information processing applications. In the paper, we mainly review …

Quantum secure direct communication (QSDC) can transmit secret messages without keys,
making it an important branch of quantum communication. We present a hybrid …

We propose a new protocol of asymmetric bidirectional controlled teleportation by using a
seven-qubit cluster state as the quantum channel. That is to say Alice wants to transmit an …

In this paper, a two-party quantum private comparison (QPC) protocol is proposed by using
five-qubit entangled states as the quantum resource. The proposed protocol needs the help …

Arbitrated quantum signature (AQS) scheme based on quantum teleportation has better
flexibility and practicability. In this paper, we propose an arbitrated quantum signature …

In this paper, two fault tolerant channel-encrypting quantum dialogue (QD) protocols against
collective noise are presented. One is against collective-dephasing noise, while the other is …

The first quantum private comparison (QPC) protocol via cavity quantum electrodynamics
(QED) is proposed in this paper by making full use of the evolution law of atom via cavity …

Quantum steering, entanglement, and discord often deal with different relativistic quantum
information tasks. It is necessary, therefore, to classify different hierarchies of quantum …

Quantum private comparison (QPC) aims to accomplish the equality comparison of the
secrets from different users without disclosing their genuine contents by using the principles …

Quantum key distribution (QKD) provides an unconditional secure key generation method
between two distant legitimate parties Alice and Bob based on the fundamental properties of …