Fast Virtual Gate Extraction For Silicon Quantum Dot Devices
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866913513540157440 |
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| author | Che, Shize Oh, Seong W Qin, Haoyun Liu, Yuhao Sigillito, Anthony Li, Gushu |
| author_facet | Che, Shize Oh, Seong W Qin, Haoyun Liu, Yuhao Sigillito, Anthony Li, Gushu |
| contents | Silicon quantum dot devices stand as promising candidates for large-scale quantum computing due to their extended coherence times, compact size, and recent experimental demonstrations of sizable qubit arrays. Despite the great potential, controlling these arrays remains a significant challenge. This paper introduces a new virtual gate extraction method to quickly establish orthogonal control on the potentials for individual quantum dots. Leveraging insights from the device physics, the proposed approach significantly reduces the experimental overhead by focusing on crucial regions around charge state transition. Furthermore, by employing an efficient voltage sweeping method, we can efficiently pinpoint these charge state transition lines and filter out erroneous points. Experimental evaluation using real quantum dot chip datasets demonstrates a substantial 5.84x to 19.34x speedup over conventional methods, thereby showcasing promising prospects for accelerating the scaling of silicon spin qubit devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_15181 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Fast Virtual Gate Extraction For Silicon Quantum Dot Devices Che, Shize Oh, Seong W Qin, Haoyun Liu, Yuhao Sigillito, Anthony Li, Gushu Mesoscale and Nanoscale Physics Hardware Architecture Silicon quantum dot devices stand as promising candidates for large-scale quantum computing due to their extended coherence times, compact size, and recent experimental demonstrations of sizable qubit arrays. Despite the great potential, controlling these arrays remains a significant challenge. This paper introduces a new virtual gate extraction method to quickly establish orthogonal control on the potentials for individual quantum dots. Leveraging insights from the device physics, the proposed approach significantly reduces the experimental overhead by focusing on crucial regions around charge state transition. Furthermore, by employing an efficient voltage sweeping method, we can efficiently pinpoint these charge state transition lines and filter out erroneous points. Experimental evaluation using real quantum dot chip datasets demonstrates a substantial 5.84x to 19.34x speedup over conventional methods, thereby showcasing promising prospects for accelerating the scaling of silicon spin qubit devices. |
| title | Fast Virtual Gate Extraction For Silicon Quantum Dot Devices |
| topic | Mesoscale and Nanoscale Physics Hardware Architecture |
| url | https://arxiv.org/abs/2409.15181 |