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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2409.06838 |
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| _version_ | 1866912486574260224 |
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| author | Olivieri, Fabio Noah, Grayson M. Swift, Thomas Gonzalez-Zalba, M. Fernando Morton, John J. L. Gomez-Saiz, Alberto |
| author_facet | Olivieri, Fabio Noah, Grayson M. Swift, Thomas Gonzalez-Zalba, M. Fernando Morton, John J. L. Gomez-Saiz, Alberto |
| contents | On-chip thermometry at deep-cryogenic temperatures is vital in quantum computing applications to accurately quantify the effect of increased temperature on qubit performance. In this work, we present a sub-1 K temperature sensor in CMOS technology based on the temperature dependence of the critical current of a superconducting (SC) thin-film. The sensor is implemented in 22-nm fully depleted silicon on insulator (FDSOI) technology and comprises a 6 nA resolution current-output digital-to-analog converter (DAC), a transimpedance amplifier (TIA) with a SC thin-film as a gain element, and a voltage comparator. The circuit dissipates 1.5 uW and is demonstrated operating at ambient temperatures as low as 15 mK, providing a variable temperature resolution reaching sub-10 mK. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_06838 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | An Integrated Deep-Cryogenic Temperature Sensor in CMOS Technology for Quantum Computing Applications Olivieri, Fabio Noah, Grayson M. Swift, Thomas Gonzalez-Zalba, M. Fernando Morton, John J. L. Gomez-Saiz, Alberto Quantum Physics On-chip thermometry at deep-cryogenic temperatures is vital in quantum computing applications to accurately quantify the effect of increased temperature on qubit performance. In this work, we present a sub-1 K temperature sensor in CMOS technology based on the temperature dependence of the critical current of a superconducting (SC) thin-film. The sensor is implemented in 22-nm fully depleted silicon on insulator (FDSOI) technology and comprises a 6 nA resolution current-output digital-to-analog converter (DAC), a transimpedance amplifier (TIA) with a SC thin-film as a gain element, and a voltage comparator. The circuit dissipates 1.5 uW and is demonstrated operating at ambient temperatures as low as 15 mK, providing a variable temperature resolution reaching sub-10 mK. |
| title | An Integrated Deep-Cryogenic Temperature Sensor in CMOS Technology for Quantum Computing Applications |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2409.06838 |