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Surface-Codes-Based Quantum Communication Networks.

Ivan B Djordjevic1

  • 1Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ 85721, USA.

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Summary
This summary is machine-generated.

This study introduces surface codes (SCs) for multipartite quantum communication networks (QCNs), enabling simultaneous entanglement of multiple nodes and extending transmission distances over 1000 km. The networks are operable using software-defined networking (SDN).

Keywords:
entanglementquantum communicationsquantum communications networks (QCNs)quantum key distribution (QKD)surface codes

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Area of Science:

  • Quantum communication networks
  • Quantum information science
  • Network topology

Background:

  • Multipartite quantum communication networks (QCNs) face challenges in simultaneously entangling multiple nodes and extending transmission distances.
  • Surface codes (SCs) offer a promising approach for robust quantum information processing.

Purpose of the Study:

  • To propose and describe surface codes (SCs)-based multipartite quantum communication networks (QCNs).
  • To enable simultaneous entanglement of multiple nodes in arbitrary network topologies.
  • To extend transmission distances between arbitrary nodes within QCNs.

Main Methods:

  • Utilizing surface codes (SCs) for network construction and entanglement distribution.
  • Implementing simple syndrome decoding for error correction.
  • Employing software-defined networking (SDN) for network operation.

Main Results:

  • Demonstrated simultaneous entanglement of multiple nodes in arbitrary network topologies using SCs.
  • Extended transmission distances between nodes to over 1000 km through SCs and syndrome decoding.
  • Successfully operated the proposed QCN using SDN principles.

Conclusions:

  • Surface codes provide a viable framework for building scalable and long-distance multipartite quantum communication networks.
  • The integration of SDN facilitates efficient and flexible operation of these quantum networks.
  • This work advances the development of practical quantum communication infrastructure.