Multiplexing schemes for quantum repeater networks

Luciano Aparicio, Rodney D Van Meter

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)


When built, quantum repeaters will allow the distribution of entangled quantum states across large distances, playing a vital part in many proposed quantum technologies. Enabling multiple users to connect through the same network will be key to their real-world deployment. Previous work on repeater technologies has focussed only on simple entanglment production, without considering the issues of resource scarcity and competition that necessarily arise in a network setting. In this paper we simulated a thirteen-node network with up to five flows sharing different parts of the network, measuring the total throughput and fairness for each case. Our results suggest that the Internet-like approach of statistical multiplexing use of a congested link gives the highest aggregate throughput. Time division multiplexing and buffer space multiplexing were slightly less effective, but all three schemes allow the sum of multiple flows to substantially exceed that of any one flow, improving over circuit switching by taking advantage of resources that are forced to remain idle in circuit switching. All three schemes proved to have excellent fairness. The high performance, fairness and simplicity of implementation support a recommendation of statistical multiplexing for shared quantum repeater networks.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2011
EventQuantum Communications and Quantum Imaging IX - San Diego, CA, United States
Duration: 2011 Aug 242011 Aug 25


OtherQuantum Communications and Quantum Imaging IX
CountryUnited States
CitySan Diego, CA



  • multiplexing
  • quantum networks
  • quantum repeaters

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Aparicio, L., & Van Meter, R. D. (2011). Multiplexing schemes for quantum repeater networks. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8163). [816308]