Surface-Codes-Based Quantum Communication Networks

Entropy (Basel). 2020 Sep 22;22(9):1059. doi: 10.3390/e22091059.

Abstract

In this paper, we propose the surface codes (SCs)-based multipartite quantum communication networks (QCNs). We describe an approach that enables us to simultaneously entangle multiple nodes in an arbitrary network topology based on the SCs. We also describe how to extend the transmission distance between arbitrary two nodes by using the SCs. The numerical results indicate that transmission distance between nodes can be extended to beyond 1000 km by employing simple syndrome decoding. Finally, we describe how to operate the proposed QCN by employing the software-defined networking (SDN) concept.

Keywords: entanglement; quantum communications; quantum communications networks (QCNs); quantum key distribution (QKD); surface codes.