A quantum internet is the holy grail of quantum information processing, enabling the
deployment of a broad range of quantum technologies and protocols on a global scale …

Thirty years after it was first proposed, quantum teleportation remains one of the most
important protocols in quantum information and quantum technologies, enabling the …

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 …

Photons have been a flagship system for studying quantum mechanics, advancing quantum
information science, and developing quantum technologies. Quantum entanglement …

Since its discovery, quantum entanglement has challenged some of the best established
views of the world: locality and reality. Quantum technologies promise to revolutionize …

High-quality long-distance entanglement is essential for both quantum communication and
scalable quantum networks. Entanglement purification is to distill high-quality entanglement …

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

Taking advantage of quantum mechanics for executing computational tasks faster than
classical computers or performing measurements with precision exceeding the classical …

Photonic quantum technologies represent a promising platform for several applications,
ranging from long-distance communications to the simulation of complex phenomena …

Just as “classical” information technology rests on a foundation built of interconnected
information-processing systems, quantum information technology (QIT) must do the same. A …