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Article
Locality-Aware Qubit Routing for the Grid Architecture
Proceedings - 2022 IEEE 36th International Parallel and Distributed Processing Symposium Workshops, IPDPSW 2022
  • Avah Banerjee, Missouri University of Science and Technology
  • Xin Liang, Missouri University of Science and Technology
  • R. Tohid
Abstract

Due to the short decohorence time of qubits available in the NISQ-era, it is essential to pack (minimize the size and or the depth of) a logical quantum circuit as efficiently as possible given a sparsely coupled physical architecture. In this work we introduce a locality-aware qubit routing algorithm based on a graph theoretic framework. Our algorithm is designed for the grid and certain 'grid-like' architectures. We experimentally show the competitiveness of algorithm by comparing it against the approximate token swapping algorithm, which is used as a primitive in many state-of-the-art quantum transpilers. Our algorithm produces circuits of comparable depth (better on random permutations) while being an order of magnitude faster than a typical implementation of the approximate token swapping algorithm.

Department(s)
Computer Science
Keywords and Phrases
  • Grid Graphs,
  • Parallel Token Swapping,
  • Qubit Routing
International Standard Book Number (ISBN)
978-166549747-3
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2022 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
1-1-2022
Publication Date
01 Jan 2022
Citation Information
Avah Banerjee, Xin Liang and R. Tohid. "Locality-Aware Qubit Routing for the Grid Architecture" Proceedings - 2022 IEEE 36th International Parallel and Distributed Processing Symposium Workshops, IPDPSW 2022 (2022) p. 607 - 613
Available at: http://works.bepress.com/avah-banerjee/8/