Quantum networks are the ultimate target in quantum communication, where many
connected users can share information carried by quantum systems. The keystones of such …

Quantum cryptography provides the inherent security for transmitting confidential information
across free space or a fiber link. However, a high secure-key rate is still a challenge for a …

High-dimensional entanglement has demonstrated its potential for increasing channel
capacity and resistance to noise in quantum information processing. However, distributing it …

To beat the channel capacity limit of conventional quantum dense coding (QDC) with fixed
quantum resources, we experimentally implement the orbital angular momentum (OAM) …

High-bit-rate long-distance quantum communication is a proposed technology for future
communication networks and relies on high-dimensional quantum entanglement as a core …

Photonics has become a mature field of quantum information science, where integrated
optical circuits offer a way to scale the complexity of the set-up as well as the dimensionality …

Entanglement distribution between distant parties is one of the most important and
challenging tasks in quantum communication. Distribution of photonic entangled states …

“Twisted photons” are photons carrying a well-defined nonzero value of orbital angular
momentum (OAM). The associated optical wave exhibits a helical shape of the wavefront …

Multipartite entanglement (ME) is the fundamental ingredient for building quantum networks.
The scale of ME determines its quantum information carrying and processing capability …

Entanglement is a vital resource for realizing many tasks such as teleportation, secure key
distribution, metrology, and quantum computations. To effectively build entanglement …