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Deterministic Bell state measurement with a single quantum memory
http://hdl.handle.net/10131/0002000121
http://hdl.handle.net/10131/0002000121a4064694-3f54-40d4-b048-79d8bcca33fd
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
20231016_Deterministic Bell state measurement with a single quantum.pdf (2.7 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||
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| 公開日 | 2023-10-26 | |||||||||||||||
| タイトル | ||||||||||||||||
| タイトル | Deterministic Bell state measurement with a single quantum memory | |||||||||||||||
| 言語 | en | |||||||||||||||
| 言語 | ||||||||||||||||
| 言語 | eng | |||||||||||||||
| キーワード | ||||||||||||||||
| 主題 | Quantum information, Quantum optics(en) | |||||||||||||||
| 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 | |||||||||||||||
| アクセス権 | ||||||||||||||||
| アクセス権 | open access | |||||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||||
| 著者 |
Kamimaki, Akira
× Kamimaki, Akira
ORCID
0000-0001-5465-2352
× Wakamatsu, Keidai
ORCID
0009-0000-8917-2527
× Mikata, Kosuke
× Sekiguchi, Yuhei
ORCID
0000-0002-8850-4646
× Kosaka, Hideo
ORCID
0000-0002-3778-7236
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| 抄録 | ||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||
| 内容記述 | Entanglements serve as a resource for any quantum information system and are deterministically generated or swapped by a joint measurement called complete Bell state measurement (BSM). The determinism arises from a quantum nondemolition measurement of two coupled qubits with the help of readout ancilla, which inevitably requires extra physical qubits. We here demonstrate a deterministic and complete BSM with only a nitrogen atom in a nitrogen-vacancy (NV) center in diamond as a quantum memory without relying on any carbon isotopes, which are the extra qubits, by exploiting electron‒nitrogen (14N) double qutrits at a zero magnetic field. The degenerate logical qubits within the subspace of qutrits on the electron and nitrogen spins are holonomically controlled by arbitrarily polarized microwave and radiofrequency pulses via zero-field-split states as the ancilla, thus enabling the complete BSM deterministically. Since the system works under an isotope-free and field-free environment, the demonstration paves the way to realize high-fidelity quantum repeaters for long-haul quantum networks and quantum interfaces for large-scale distributed quantum computers. | |||||||||||||||
| 言語 | en | |||||||||||||||
| 書誌情報 |
en : npj Quantum Information 巻 9, 発行日 2023-10-16 |
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| ISSN | ||||||||||||||||
| 収録物識別子タイプ | EISSN | |||||||||||||||
| 収録物識別子 | 20566387 | |||||||||||||||
| DOI | ||||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||
| 関連識別子 | https://doi.org/10.1038/s41534-023-00771-z | |||||||||||||||
| 権利 | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 権利情報Resource | https://creativecommons.org/licenses/by/4.0/ | |||||||||||||||
| 権利情報 | Creative Commons Attribution 4.0 International | |||||||||||||||
| 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 | |||||||||||||||
| 出版者 | ||||||||||||||||
| 出版者 | Springer Nature | |||||||||||||||
