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Fast parametric two-qubit gates with suppressed residual interaction using the second-order nonlinearity of a cubic transmon
https://oist.repo.nii.ac.jp/records/1972
https://oist.repo.nii.ac.jp/records/197286ef4822-9a74-47e8-9163-ad983a0a28d3
名前 / ファイル | ライセンス | アクション |
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Noguchi-2020-Fast parametric two-qubit gates w (1.9 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-03-09 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Fast parametric two-qubit gates with suppressed residual interaction using the second-order nonlinearity of a cubic transmon | |||||
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) |
Noguchi, Atsushi
× Noguchi, Atsushi× Osada, Alto× Masuda, Shumpei× Kono, Shingo× Heya, Kentaro× Wolski, Samuel Piotr× Takahashi, Hiroki× Sugiyama, Takanori× Lachance-Quirion, Dany× Nakamura, Yasunobu |
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書誌情報 |
en : Physical Review A 巻 102, 号 6, p. 062408, 発行日 2020-12-11 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | We demonstrate fast two-qubit gates using a parity-violated superconducting qubit consisting of a capacitively shunted asymmetric Josephson-junction loop under a finite magnetic flux bias. The second-order nonlinearity manifesting in the qubit enables the interaction with a neighboring single-junction transmon qubit via first-order interqubit sideband transitions with Rabi frequencies up to 30 MHz. Simultaneously, the unwanted static longitudinal (ZZ) interaction is eliminated with ac Stark shifts induced by a continuous microwave drive near resonant to the sideband transitions. The average fidelities of the two-qubit gates are evaluated with randomized benchmarking as 0.971, 0.958, and 0.962 for CZ, iswap, and swap gates, respectively. | |||||
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 | 2469-9926 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2469-9934 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1103/PhysRevA.102.062408 | |||||
権利 | ||||||
権利情報 | © 2020 American Physical Society. | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://journals.aps.org/pra/abstract/10.1103/PhysRevA.102.062408 | |||||
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 |