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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2308.07084 |
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| _version_ | 1866908553105637376 |
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| author | Petrovnin, Kirill Wang, Jiaming Perelshtein, Michael Hakonen, Pertti Paraoanu, Gheorghe Sorin |
| author_facet | Petrovnin, Kirill Wang, Jiaming Perelshtein, Michael Hakonen, Pertti Paraoanu, Gheorghe Sorin |
| contents | The detection of microwave fields at single-photon power levels is a much sought-after technology, with practical applications in nanoelectronics and quantum information science. Here we demonstrate a simple yet powerful criticality-enhanced method of microwave photon detection by operating a magnetic-field tunable Kerr Josephson parametric amplifier at the border of a first-order phase transition and close to the critical point. We obtain a 73\% efficiency and a dark-count rate of 167 kHz, corresponding to a responsivity of $1.3 \times 10^{17}~\mathrm{W}^{-1}$ and noise-equivalent power of 3.28 zW/$\sqrt{\rm Hz}$. We verify the single-photon operation by extracting the Poissonian statistics of a coherent probe signal. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_07084 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Microwave photon detection at parametric criticality Petrovnin, Kirill Wang, Jiaming Perelshtein, Michael Hakonen, Pertti Paraoanu, Gheorghe Sorin Quantum Physics The detection of microwave fields at single-photon power levels is a much sought-after technology, with practical applications in nanoelectronics and quantum information science. Here we demonstrate a simple yet powerful criticality-enhanced method of microwave photon detection by operating a magnetic-field tunable Kerr Josephson parametric amplifier at the border of a first-order phase transition and close to the critical point. We obtain a 73\% efficiency and a dark-count rate of 167 kHz, corresponding to a responsivity of $1.3 \times 10^{17}~\mathrm{W}^{-1}$ and noise-equivalent power of 3.28 zW/$\sqrt{\rm Hz}$. We verify the single-photon operation by extracting the Poissonian statistics of a coherent probe signal. |
| title | Microwave photon detection at parametric criticality |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2308.07084 |