High-Dimensional Two-Photon Quantum Controlled Phase-Flip Gate
Fuente:
arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866911849947070464 |
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| author | Chen, Mingyuan Tang, Jiangshan Cai, Miao Nori, Franco Xia, Keyu |
| author_facet | Chen, Mingyuan Tang, Jiangshan Cai, Miao Nori, Franco Xia, Keyu |
| contents | High-dimensional quantum systems have been used to reveal interesting fundamental physics and to improve information capacity and noise resilience in quantum information processing. However, it remains a significant challenge to realize universal two-photon quantum gates in high dimensions with high success probability. Here, by considering an ion-cavity QED system, we theoretically propose, to the best of our knowledge, the first high-dimensional, deterministic and universal two-photon quantum gate. By using an optical cavity embedded with a single trapped 40Ca+ ion, we achieve a high average fidelity larger than 98% for a quantum controlled phase-flip gate in four-dimensional space, spanned by photonic spin angular momenta and orbital angular momenta. Our proposed system can be an essential building block for high-dimensional quantum information processing, and also provides a platform for studying high-dimensional cavity QED. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_14673 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | High-Dimensional Two-Photon Quantum Controlled Phase-Flip Gate Chen, Mingyuan Tang, Jiangshan Cai, Miao Nori, Franco Xia, Keyu Quantum Physics Optics High-dimensional quantum systems have been used to reveal interesting fundamental physics and to improve information capacity and noise resilience in quantum information processing. However, it remains a significant challenge to realize universal two-photon quantum gates in high dimensions with high success probability. Here, by considering an ion-cavity QED system, we theoretically propose, to the best of our knowledge, the first high-dimensional, deterministic and universal two-photon quantum gate. By using an optical cavity embedded with a single trapped 40Ca+ ion, we achieve a high average fidelity larger than 98% for a quantum controlled phase-flip gate in four-dimensional space, spanned by photonic spin angular momenta and orbital angular momenta. Our proposed system can be an essential building block for high-dimensional quantum information processing, and also provides a platform for studying high-dimensional cavity QED. |
| title | High-Dimensional Two-Photon Quantum Controlled Phase-Flip Gate |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2404.14673 |