Development of quantum communications

XU Hua-xin

Quantum communication based on quantum mechanics is a secure communication technology,which can provide unconditional security between communication parties in principle. Recently,quantum communication technology and its practical engineering have been regarded by many counties and regions such as the US,European Union,China and Japan. With the engineering development of quantum communication technology,it has been progressing from point-to-point communications to network applications,including local area networks and wide area networks. Furthermore,global quantum communication is developing. In the review,we summarize in detail the development of the quantum communication networks built by various countries,and introduce the plans of quantum satellites.

Gianfranco Cariolaro

Siyu Song, Chuan Xi Wang

Rundian Zhang

From the earliest research and study of quantum communication to application and achievement.In recent years, with the continuous development of quantum communication, quantum secure direct communication became an important branch of quantum communication.Quantum secure direct communication uses distinct quantum states of photons as the information carrier in the transmission process to assure the safe and correct direct transmission of sensitive information between communication participants.This paper would introduce the application and development of quantum communication technology.It includes the theory and different protocol of quantum communication.From the earliest research and study of quantum communication to application and achievement.The paper discussed a QKD service interface between the QKD protocol and the security applications.This interface provides a set of common QKD services needed by existing security protocols.The application of quantum communication technology develops the economy to some extent as well.Therefore, governments of all countries will pay more attention to the development of quantum technology and invest more money and manpower costs.

Samuele Altilia

Song Si

In this review article,we will review the recent process of quantum communications.In the past decades,there are many developments in quantum communication,for instance,quantum key distribution,quantum teleportation,quantum secure direct communication,deterministic secure quantum communication,quantum secret sharing and so on.And we focus our attention on the recent developments in quantum communication protocols.