A link layer protocol for quantum networks

Axel Dahlberg, Matthew Skrzypczyk, Tim Coopmans, Leon Wubben, Filip Rozpdek, Matteo Pompili, Arian Stolk, Przemyslaw Pawelczak, Rob Knegjens, Julio De Oliveira Filho, Ronald Hanson, Stephanie Wehner

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

33 Citations (Scopus)
32 Downloads (Pure)

Abstract

Quantum communication brings radically new capabilities that are provably impossible to attain in any classical network. Here, we take the first step from a physics experiment to a quantum internet system. We propose a functional allocation of a quantum network stack, and construct the first physical and link layer protocols that turn ad-hoc physics experiments producing heralded entanglement between quantum processors into a well-defined and robust service. This lays the groundwork for designing and implementing scalable control and application protocols in platform-independent software. To design our protocol, we identify use cases, as well as fundamental and technological design considerations of quantum network hardware, illustrated by considering the state-of-the-art quantum processor platform available to us (Nitrogen-Vacancy (NV) centers in diamond). Using a purpose built discrete-event simulator for quantum networks, we examine the robustness and performance of our protocol using extensive simulations on a supercomputing cluster. We perform a full implementation of our protocol in our simulator, where we successfully validate the physical simulation model against data gathered from the NV hardware. We first observe that our protocol is robust even in a regime of exaggerated losses of classical control messages with only little impact on the performance of the system. We proceed to study the performance of our protocols for 169 distinct simulation scenarios, including trade-offs between traditional performance metrics such as throughput, and the quality of entanglement. Finally, we initiate the study of quantum network scheduling strategies to optimize protocol performance for different use cases.

Original languageEnglish
Title of host publicationSIGCOMM 2019 - Proceedings of the 2019 Conference of the ACM Special Interest Group on Data Communication
PublisherAssociation for Computing Machinery (ACM)
Pages159-173
ISBN (Electronic)9781450359566
DOIs
Publication statusPublished - 2019
Event50th Conference of the ACM Special Interest Group on Data Communication, SIGCOMM 2019 - Beijing, China
Duration: 19 Aug 201923 Aug 2019

Publication series

NameSIGCOMM 2019 - Proceedings of the 2019 Conference of the ACM Special Interest Group on Data Communication

Conference

Conference50th Conference of the ACM Special Interest Group on Data Communication, SIGCOMM 2019
CountryChina
CityBeijing
Period19/08/1923/08/19

Keywords

  • Link Layer
  • Quantum Internet
  • Quantum Networks

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