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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/2312.14065 |
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| _version_ | 1866929578101964800 |
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| author | Stanisavljević, Ognjen Philippe, Jean-Côme Gabelli, Julien Aprili, Marco Estève, Jérôme Basset, Julien |
| author_facet | Stanisavljević, Ognjen Philippe, Jean-Côme Gabelli, Julien Aprili, Marco Estève, Jérôme Basset, Julien |
| contents | We demonstrate an efficient and continuous microwave photon to electron converter with large quantum efficiency ($83\%$) and low dark current. These unique properties are enabled by the use of a high kinetic inductance disordered superconductor, granular aluminium, to enhance light-matter interaction and the coupling of microwave photons to electron tunneling processes. As a consequence of strong coupling, we observe both linear and non-linear photon-assisted processes where 2, 3 and 4 photons are converted into a single electron at unprecedentedly low light intensities. Theoretical predictions, which require quantization of the photonic field within a quantum master equation framework, reproduce well the experimental data. This experimental advancement brings the foundation for high-efficiency detection of individual microwave photons using charge-based detection techniques. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_14065 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Efficient Microwave Photon to Electron Conversion in a High Impedance Quantum Circuit Stanisavljević, Ognjen Philippe, Jean-Côme Gabelli, Julien Aprili, Marco Estève, Jérôme Basset, Julien Quantum Physics Mesoscale and Nanoscale Physics We demonstrate an efficient and continuous microwave photon to electron converter with large quantum efficiency ($83\%$) and low dark current. These unique properties are enabled by the use of a high kinetic inductance disordered superconductor, granular aluminium, to enhance light-matter interaction and the coupling of microwave photons to electron tunneling processes. As a consequence of strong coupling, we observe both linear and non-linear photon-assisted processes where 2, 3 and 4 photons are converted into a single electron at unprecedentedly low light intensities. Theoretical predictions, which require quantization of the photonic field within a quantum master equation framework, reproduce well the experimental data. This experimental advancement brings the foundation for high-efficiency detection of individual microwave photons using charge-based detection techniques. |
| title | Efficient Microwave Photon to Electron Conversion in a High Impedance Quantum Circuit |
| topic | Quantum Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2312.14065 |