Compact and Tunable Forward Coupler Based on High-Impedance Superconducting Nanowires
© 2021 American Physical Society. Developing compact, low-dissipation, cryogenic-compatible microwave electronics is essential for scaling up low-temperature quantum computing systems. In this paper, we demonstrate an ultracompact microwave directional forward coupler based on high-impedance slow-wa...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society (APS)
2022
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| Online Access: | https://hdl.handle.net/1721.1/142771 |
| _version_ | 1826210958237761536 |
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| author | Colangelo, Marco Zhu, Di Santavicca, Daniel F Butters, Brenden A Bienfang, Joshua C Berggren, Karl K |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Colangelo, Marco Zhu, Di Santavicca, Daniel F Butters, Brenden A Bienfang, Joshua C Berggren, Karl K |
| author_sort | Colangelo, Marco |
| collection | MIT |
| description | © 2021 American Physical Society. Developing compact, low-dissipation, cryogenic-compatible microwave electronics is essential for scaling up low-temperature quantum computing systems. In this paper, we demonstrate an ultracompact microwave directional forward coupler based on high-impedance slow-wave superconducting-nanowire transmission lines. The coupling section of the fabricated device has a footprint of 416μm2. At 4.753 GHz, the input signal couples equally to the through port and forward-coupling port (50:50) at -6.7dB with -13.5dB isolation. The coupling ratio can be controlled with dc bias current or temperature by exploiting the dependence of the kinetic inductance on these quantities. The material and fabrication processes are suitable for direct integration with superconducting circuits, providing a practical solution to the signal distribution bottlenecks in developing large-scale quantum computers. |
| first_indexed | 2024-09-23T14:58:29Z |
| format | Article |
| id | mit-1721.1/142771 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:58:29Z |
| publishDate | 2022 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1427712023-02-08T20:43:01Z Compact and Tunable Forward Coupler Based on High-Impedance Superconducting Nanowires Colangelo, Marco Zhu, Di Santavicca, Daniel F Butters, Brenden A Bienfang, Joshua C Berggren, Karl K Massachusetts Institute of Technology. Research Laboratory of Electronics © 2021 American Physical Society. Developing compact, low-dissipation, cryogenic-compatible microwave electronics is essential for scaling up low-temperature quantum computing systems. In this paper, we demonstrate an ultracompact microwave directional forward coupler based on high-impedance slow-wave superconducting-nanowire transmission lines. The coupling section of the fabricated device has a footprint of 416μm2. At 4.753 GHz, the input signal couples equally to the through port and forward-coupling port (50:50) at -6.7dB with -13.5dB isolation. The coupling ratio can be controlled with dc bias current or temperature by exploiting the dependence of the kinetic inductance on these quantities. The material and fabrication processes are suitable for direct integration with superconducting circuits, providing a practical solution to the signal distribution bottlenecks in developing large-scale quantum computers. 2022-05-26T14:04:22Z 2022-05-26T14:04:22Z 2021 2022-05-26T13:52:00Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142771 Colangelo, Marco, Zhu, Di, Santavicca, Daniel F, Butters, Brenden A, Bienfang, Joshua C et al. 2021. "Compact and Tunable Forward Coupler Based on High-Impedance Superconducting Nanowires." Physical Review Applied, 15 (2). en 10.1103/PHYSREVAPPLIED.15.024064 Physical Review Applied Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS |
| spellingShingle | Colangelo, Marco Zhu, Di Santavicca, Daniel F Butters, Brenden A Bienfang, Joshua C Berggren, Karl K Compact and Tunable Forward Coupler Based on High-Impedance Superconducting Nanowires |
| title | Compact and Tunable Forward Coupler Based on High-Impedance Superconducting Nanowires |
| title_full | Compact and Tunable Forward Coupler Based on High-Impedance Superconducting Nanowires |
| title_fullStr | Compact and Tunable Forward Coupler Based on High-Impedance Superconducting Nanowires |
| title_full_unstemmed | Compact and Tunable Forward Coupler Based on High-Impedance Superconducting Nanowires |
| title_short | Compact and Tunable Forward Coupler Based on High-Impedance Superconducting Nanowires |
| title_sort | compact and tunable forward coupler based on high impedance superconducting nanowires |
| url | https://hdl.handle.net/1721.1/142771 |
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