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Published July 2020 | Submitted + Published
Journal Article Open

Linear-Time Maximum Likelihood Decoding of Surface Codes over the Quantum Erasure Channel

Abstract

Surface codes are among the best candidates to ensure the fault tolerance of a quantum computer. In order to avoid the accumulation of errors during a computation, it is crucial to have at our disposal a fast decoding algorithm to quickly identify and correct errors as soon as they occur. We propose a linear-time maximum likelihood decoder for surface codes over the quantum erasure channel. This decoding algorithm for dealing with qubit loss is optimal both in terms of performance and speed.

Additional Information

© 2020 Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Received 6 November 2019; accepted 6 April 2020; published 9 July 2020. N.D. thanks Jonas Anderson for his comments on a preliminary version of this work. N.D. acknowledges funding provided by the Institute for Quantum Information and Matter, an NSF Physics Frontiers Center (NSF Grant No. PHY-1125565) with the support of the Gordon and Betty Moore Foundation (GBMF-2644).

Attached Files

Published - PhysRevResearch.2.033042.pdf

Submitted - 1703.01517.pdf

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Created:
August 19, 2023
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October 17, 2023