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dc.contributor.author | Ono, Takafumi | en |
dc.contributor.author | Okamoto, Ryo | en |
dc.contributor.author | Tanida, Masato | en |
dc.contributor.author | Hofmann, Holger F. | en |
dc.contributor.author | Takeuchi, Shigeki | en |
dc.contributor.alternative | 小野, 貴史 | ja |
dc.contributor.alternative | 岡本, 亮 | ja |
dc.contributor.alternative | 谷田, 真人 | ja |
dc.contributor.alternative | ホフマン, F. ホルガ | ja |
dc.contributor.alternative | 竹内, 繁樹 | ja |
dc.date.accessioned | 2017-04-03T07:51:22Z | - |
dc.date.available | 2017-04-03T07:51:22Z | - |
dc.date.issued | 2017-03-31 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | http://hdl.handle.net/2433/219408 | - |
dc.description | 光子を用いた、3量子ビットのゲート操作実現に成功 --光量子回路の飛躍的な高効率化に寄与--. 京都大学プレスリリース. 2017-04-03. | ja |
dc.description.abstract | Quantum information science addresses how the processing and transmission of information are affected by uniquely quantum mechanical phenomena. Combination of two-qubit gates has been used to realize quantum circuits, however, scalability is becoming a critical problem. The use of three-qubit gates may simplify the structure of quantum circuits dramatically. Among them, the controlled-SWAP (Fredkin) gates are essential since they can be directly applied to important protocols, e.g., error correction, fingerprinting, and optimal cloning. Here we report a realization of the Fredkin gate for photonic qubits. We achieve a fidelity of 0.85 in the computational basis and an output state fidelity of 0.81 for a 3-photon Greenberger-Horne-Zeilinger state. The estimated process fidelity of 0.77 indicates that our Fredkin gate can be applied to various quantum tasks. | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Springer Nature | en |
dc.rights | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ | en |
dc.title | Implementation of a quantum controlled-SWAP gate with photonic circuits | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | Scientific Reports | en |
dc.identifier.volume | 7 | - |
dc.relation.doi | 10.1038/srep45353 | - |
dc.textversion | publisher | - |
dc.identifier.artnum | 45353 | - |
dc.identifier.pmid | 28361950 | - |
dc.relation.url | https://www.kyoto-u.ac.jp/ja/research-news/2017-04-03 | - |
dcterms.accessRights | open access | - |
出現コレクション: | 学術雑誌掲載論文等 |
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