Hybrid superinductance with Al/InAs
Fuente:
arXiv
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| Autores principales: | , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866911377130520576 |
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| author | Oh, Junseok Levy, Ido Cowan, Tyler Issokson, Jacob Kamal, Archana Shabani, Javad Higginbotham, Andrew P. |
| author_facet | Oh, Junseok Levy, Ido Cowan, Tyler Issokson, Jacob Kamal, Archana Shabani, Javad Higginbotham, Andrew P. |
| contents | We report microwave spectroscopy of Josephson junctions chains made from an epitaxial Al/InAs heterostructure. The chains exhibit superinductance, with characteristic wave impedance exceeding $R_{Q} = \hbar/(2e)^{2}$. The planar nature of the junctions results in a large plasma frequency, with no measurable deviations from ideal dispersion up to $12~\mathrm{GHz}$. Internal quality factors decrease sharply with frequency, which we describe with a simple loss model. The possibility of a loss mechanism intrinsic to the superconductor-semiconductor junction is considered. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_10023 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Hybrid superinductance with Al/InAs Oh, Junseok Levy, Ido Cowan, Tyler Issokson, Jacob Kamal, Archana Shabani, Javad Higginbotham, Andrew P. Mesoscale and Nanoscale Physics Quantum Physics We report microwave spectroscopy of Josephson junctions chains made from an epitaxial Al/InAs heterostructure. The chains exhibit superinductance, with characteristic wave impedance exceeding $R_{Q} = \hbar/(2e)^{2}$. The planar nature of the junctions results in a large plasma frequency, with no measurable deviations from ideal dispersion up to $12~\mathrm{GHz}$. Internal quality factors decrease sharply with frequency, which we describe with a simple loss model. The possibility of a loss mechanism intrinsic to the superconductor-semiconductor junction is considered. |
| title | Hybrid superinductance with Al/InAs |
| topic | Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2601.10023 |