Entanglement-Based Quantum Cryptography and Quantum Communication

Jian-Wei Pan, Yu-Ao Chen, Qiang Zhang

We present several experimental progresses for advanced quantum communication based on multi-photon entanglement, including quantum secret sharing and third man quantum cryptography, quantum error rejection, fault tolerant quantum cryptography and quantum-relay-assisted key distribution.

David S. Simon

Hiroki Takesue, Eleni Diamanti, Rob Thew +1 more

The papers in this special section provides an overview of the field of quantum communication. The papers published in this issue cover a broad range of topics related to quantum communication, summarized in the sections on single-photon detectors, entangled photons, quantum communication, and quantum cryptography. These key research topics highlight the current status and future trends in the field of quantum communication and cryptography.

F.J. Duarte

Yu-Ao Chen, An‐Ning Zhang, Zhi Zhao +5 more

Quantum secret sharing (QSS) and third-man quantum cryptography (TQC) are essential for advanced quantum communication; however, the low intensity and fragility of the multiphoton entanglement source in previous experiments have made their realization an extreme experimental challenge. Here, we develop and exploit an ultrastable high intensity source of four-photon entanglement to report an experimental realization of QSS and TQC. The technology developed in our experiment will be important for future multiparty quantum communication.

F. J. Duarte