Phase-controlled improvement of photon lifetime in coupled superconducting cavities
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arXiv
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| Hauptverfasser: | , , , , , , , , , , , |
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| Format: | Preprint |
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2023
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| author | Wang, Changqing Melnychuk, Oleksandr S Contreras-Martinez, Crispin Lu, Yao Pischalnikov, Yuriy M Pronitchev, Oleg Giaccone, Bianca Pilipenko, Roman Zorzetti, Silvia Posen, Sam Romanenko, Alexander Grassellino, Anna |
| author_facet | Wang, Changqing Melnychuk, Oleksandr S Contreras-Martinez, Crispin Lu, Yao Pischalnikov, Yuriy M Pronitchev, Oleg Giaccone, Bianca Pilipenko, Roman Zorzetti, Silvia Posen, Sam Romanenko, Alexander Grassellino, Anna |
| contents | High-quality cavities are crucial for various fundamental physical studies and applications. Here we find that by coupling two cavities directly or via a phase-tunable coupling channel, the photon lifetime of the local field can exceed that of the bare cavities. The cavity photon lifetime is modified by the phases of the initial states and the phase accumulation on the coupling channel which affect the interference between cavities. In experiments, by coupling superconducting radio-frequency cavities via phase-tunable cables, we realize a factor of two improvement in the cavity photon lifetime. The results can bring rich revenue to quantum information science, sensing, and high-energy physics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2305_15662 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Phase-controlled improvement of photon lifetime in coupled superconducting cavities Wang, Changqing Melnychuk, Oleksandr S Contreras-Martinez, Crispin Lu, Yao Pischalnikov, Yuriy M Pronitchev, Oleg Giaccone, Bianca Pilipenko, Roman Zorzetti, Silvia Posen, Sam Romanenko, Alexander Grassellino, Anna Quantum Physics High Energy Physics - Experiment Accelerator Physics Applied Physics High-quality cavities are crucial for various fundamental physical studies and applications. Here we find that by coupling two cavities directly or via a phase-tunable coupling channel, the photon lifetime of the local field can exceed that of the bare cavities. The cavity photon lifetime is modified by the phases of the initial states and the phase accumulation on the coupling channel which affect the interference between cavities. In experiments, by coupling superconducting radio-frequency cavities via phase-tunable cables, we realize a factor of two improvement in the cavity photon lifetime. The results can bring rich revenue to quantum information science, sensing, and high-energy physics. |
| title | Phase-controlled improvement of photon lifetime in coupled superconducting cavities |
| topic | Quantum Physics High Energy Physics - Experiment Accelerator Physics Applied Physics |
| url | https://arxiv.org/abs/2305.15662 |