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Measurement-based estimator scheme for continuous quantum error correction
https://oist.repo.nii.ac.jp/records/2883
https://oist.repo.nii.ac.jp/records/28834e9e249d-b7dd-46b8-912c-b5006cacaa58
名前 / ファイル | ライセンス | アクション |
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PhysRevResearch.4.033207 (1.7 MB)
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Creative Commons Attribution 4.0 International(https://creativecommons.org/licenses/by/4.0/)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2023-01-18 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Measurement-based estimator scheme for continuous quantum error correction | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Borah, Sangkha
× Borah, Sangkha× Sarma, Bijita× Kewming, Michael× Quijandría, Fernando× Milburn, Gerard J.× Twamley, Jason |
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書誌情報 |
en : Physical Review Research 巻 4, 号 3, p. 033207, 発行日 2022-09-14 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Canonical discrete quantum error correction (DQEC) schemes use projective von Neumann measurements on stabilizers to discretize the error syndromes into a finite set, and fast unitary gates are applied to recover the corrupted information. Quantum error correction (QEC) based on continuous measurement, known as continuous quantum error correction (CQEC), in principle, can be executed faster than DQEC and can also be resource efficient. However, CQEC requires meticulous filtering of noisy continuous measurement data to reliably extract error syndromes on the basis of which errors could be detected. In this paper, we show that by constructing a measurement-based estimator (MBE) of the logical qubit to be protected, which is driven by the noisy continuous measurement currents of the stabilizers, it is possible to accurately track the errors occurring on the physical qubits in real time. We use this MBE to develop a continuous quantum error correction (MBE-CQEC) scheme that can protect the logical qubit to a high degree, surpassing the performance of DQEC, and also allows QEC to be conducted either immediately or in delayed time with instantaneous feedbacks. | |||||
出版者 | ||||||
出版者 | American Physical Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2643-1564 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1103/PhysRevResearch.4.033207 | |||||
権利 | ||||||
権利情報 | © 2022 The Authors. | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.4.033207 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |