Implementation of CU gates and its application in a remote-controlled quantum operation
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866911887029960704 |
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| author | Kim, Byungjoo Hong, Seongjin Kim, Yong-Su Oh, Kyunghwan Lim, Hyang-Tag |
| author_facet | Kim, Byungjoo Hong, Seongjin Kim, Yong-Su Oh, Kyunghwan Lim, Hyang-Tag |
| contents | Recently, remote-controlled quantum information processing has been proposed for its applications in secure quantum processing protocols and distributed quantum networks. For remote-controlled quantum gates, the experimental realization of controlled unitary (CU) gates between any quantum gates is an essential task. Here, we propose and experimentally demonstrate a scheme for implementing CU gates between arbitrary pairs of unitary gates using the polarization and time-bin degrees of freedom of single-photons. Then, we experimentally implement remote-controlled single-qubit unitary gates by controlling either the state preparation or measurement of the control qubit with high process fidelities. We believe that the proposed remote-controlled quantum gate model can pave the way for secure and efficient quantum information processing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_15931 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Implementation of CU gates and its application in a remote-controlled quantum operation Kim, Byungjoo Hong, Seongjin Kim, Yong-Su Oh, Kyunghwan Lim, Hyang-Tag Quantum Physics Recently, remote-controlled quantum information processing has been proposed for its applications in secure quantum processing protocols and distributed quantum networks. For remote-controlled quantum gates, the experimental realization of controlled unitary (CU) gates between any quantum gates is an essential task. Here, we propose and experimentally demonstrate a scheme for implementing CU gates between arbitrary pairs of unitary gates using the polarization and time-bin degrees of freedom of single-photons. Then, we experimentally implement remote-controlled single-qubit unitary gates by controlling either the state preparation or measurement of the control qubit with high process fidelities. We believe that the proposed remote-controlled quantum gate model can pave the way for secure and efficient quantum information processing. |
| title | Implementation of CU gates and its application in a remote-controlled quantum operation |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2405.15931 |