A quantum walk control plane for distributed quantum computing in quantum networks

Matheus Guedes De Andrade, Wenhan Dai, Saikat Guha, Don Towsley

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

2 Scopus citations

Abstract

Quantum networks are complex systems formed by the interaction among quantum processors through quantum channels. Analogous to classical computer networks, quantum networks allow for the distribution of quantum computation among quantum computers. In this work, we describe a quantum walk protocol to perform distributed quantum computing in a quantum network. The protocol uses a quantum walk as a quantum control signal to perform distributed quantum operations. We consider a generalization of the discrete-time coined quantum walk model that accounts for the interaction between a quantum walker system in the network graph with quantum registers inside the network nodes. The protocol logically captures distributed quantum computing, abstracting hardware implementation and the transmission of quantum information through channels. Control signal transmission is mapped to the propagation of the walker system across the network, while interactions between the control layer and the quantum registers are embedded into the application of coin operators. We demonstrate how to use the quantum walker system to perform a distributed CNOT operation, which shows the universality of the protocol for distributed quantum computing. Furthermore, we apply the protocol to the task of entanglement distribution in a quantum network.

Original languageEnglish (US)
Title of host publicationProceedings - 2021 IEEE International Conference on Quantum Computing and Engineering, QCE 2021
EditorsHausi A. Muller, Greg Byrd, Candace Culhane, Travis Humble
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages313-323
Number of pages11
ISBN (Electronic)9781665416917
DOIs
StatePublished - 2021
Event2nd IEEE International Conference on Quantum Computing and Engineering, QCE 2021 - Virtual, Online, United States
Duration: Oct 17 2021Oct 22 2021

Publication series

NameProceedings - 2021 IEEE International Conference on Quantum Computing and Engineering, QCE 2021

Conference

Conference2nd IEEE International Conference on Quantum Computing and Engineering, QCE 2021
Country/TerritoryUnited States
CityVirtual, Online
Period10/17/2110/22/21

Keywords

  • Distributed Quantum Computing
  • Entanglement Distribution
  • Quantum Networks
  • Quantum Walks

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computational Theory and Mathematics
  • Computer Science Applications
  • Computational Mathematics
  • Control and Optimization
  • Modeling and Simulation

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