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Tailored Codes for Small Quantum Memories

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dc.contributor.author Robertson, Alan
dc.contributor.author Granade, Christopher
dc.contributor.author Bartlett, Stephen D.
dc.contributor.author Flammia, Steven Thomas
dc.date.accessioned 2017-12-29T17:25:10Z
dc.date.available 2017-12-29T17:25:10Z
dc.date.issued 2017-12
dc.date.submitted 2017-07
dc.identifier.issn 2331-7019
dc.identifier.uri http://hdl.handle.net/1721.1/112980
dc.description.abstract We demonstrate that small quantum memories, realized via quantum error correction in multiqubit devices, can benefit substantially by choosing a quantum code that is tailored to the relevant error model of the system. For a biased noise model, with independent bit and phase flips occurring at different rates, we show that a single code greatly outperforms the well-studied Steane code across the full range of parameters of the noise model, including for unbiased noise. In fact, this tailored code performs almost optimally when compared with 10 000 randomly selected stabilizer codes of comparable experimental complexity. Tailored codes can even outperform the Steane code with realistic experimental noise, and without any increase in the experimental complexity, as we demonstrate by comparison in the observed error model in a recent seven-qubit trapped ion experiment. en_US
dc.publisher American Physical Society en_US
dc.relation.isversionof http://dx.doi.org/10.1103/PhysRevApplied.8.064004 en_US
dc.rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. en_US
dc.source American Physical Society en_US
dc.title Tailored Codes for Small Quantum Memories en_US
dc.type Article en_US
dc.identifier.citation Robertson, Alan et al. "Tailored Codes for Small Quantum Memories." Physical Review Applied 8, 6 (December 2017): 064004 © 2017 American Physical Society en_US
dc.contributor.department Massachusetts Institute of Technology. Center for Theoretical Physics en_US
dc.contributor.mitauthor Flammia, Steven Thomas
dc.relation.journal Physical Review Applied en_US
dc.identifier.mitlicense PUBLISHER_POLICY en_US
dc.eprint.version Final published version en_US
dc.type.uri http://purl.org/eprint/type/JournalArticle en_US
eprint.status http://purl.org/eprint/status/PeerReviewed en_US
dc.date.updated 2017-12-07T18:00:09Z
dc.language.rfc3066 en
dc.rights.holder American Physical Society
dspace.orderedauthors Robertson, Alan; Granade, Christopher; Bartlett, Stephen D.; Flammia, Steven T. en_US
dspace.embargo.terms N en_US


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