A wide area quantum key distribution (QKD) network deployed on communication
infrastructures provided by China Mobile Ltd. is demonstrated. Three cities and two …

Quantum key distribution (QKD) can ensure information security between two remote
parties. To commercialise QKD technology successfully, it should be integrated with dense …

The security of classical cryptography based on computational complexity assumptions has
been severely challenged with the rapid development of quantum computers and quantum …

We propose a wavelength-saving topology of a quantum key distribution (QKD) network
based on passive optical elements, and we report on the field test of this network on …

Quantum key distribution (QKD) networks have recently attracted growing attention. The
topology of the local QKD network is the basis of the next-generation global secure …

We demonstrate the first continuous variable quantum key distribution (CV-QKD) system
with fully digital phase and polarization tracking, enabling the first wavelength division …

Quantum key distribution (QKD) networks constitute promising solutions for secure
communication. Beyond conventional point-to-point QKD, we developed 1× N QKD network …

The ability to create phase-controlled pulses of light with wavelength tunability has
applications spanning quantum and classical communications networks. Traditionally …

For combining different single photon channels into a single path, we use an effective and
reliable technique which is known as quantum multiple access. We take advantage of an …

The orbital angular momentum (OAM) of photons offers a suitable support to carry the
quantum data of multiple users. We present two optical setups that send the information of n …