Robustness-optimized quantum error correction
Name
1909.05156.pdf
Description
Accepted version
Size
1.44 MB
Format
Adobe PDF
Checksum (MD5)
be415c859bcb99c338a3799c3c3ee87e
Author(s)
Layden, David
Huang, Louisa Ruixue
Cappellaro, Paola
Date Issued
2020
Journal
Quantum Science and Technology
Publisher
IOP Publishing
Version
Author's final manuscript
Abstract
© 2020 IOP Publishing Ltd. Quantum error correction (QEC) codes are usually designed to correct errors regardless of their physical origins. In large-scale devices, this is an essential feature. In smaller-scale devices, however, the main error sources are often understood, and this knowledge could be exploited for more efficient error correction. Optimizing the QEC protocol is therefore a promising strategy in smaller devices. Typically, this involves tailoring the protocol to a given decoherence channel by solving an appropriate optimization problem. Here we introduce a new optimization-based approach, which maximizes the robustness to faults in the recovery. Our approach is inspired by recent experiments, where such faults have been a significant source of logical errors. We illustrate this approach with a three-qubit model, and show how near-term experiments could benefit from more robust QEC protocols.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1088/2058-9565/AB79B2
