دورية أكاديمية
4.2 K sensitivity-tunable radio frequency reflectometry of a physically defined p-channel silicon quantum dot
| العنوان: | 4.2 K sensitivity-tunable radio frequency reflectometry of a physically defined p-channel silicon quantum dot |
|---|---|
| المؤلفون: | Sinan Bugu, Shimpei Nishiyama, Kimihiko Kato, Yongxun Liu, Shigenori Murakami, Takahiro Mori, Thierry Ferrus, Tetsuo Kodera |
| المصدر: | Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021) |
| بيانات النشر: | Nature Portfolio, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Medicine LCC:Science |
| مصطلحات موضوعية: | Medicine, Science |
| الوصف: | Abstract We demonstrate the measurement of p-channel silicon-on-insulator quantum dots at liquid helium temperatures by using a radio frequency (rf) reflectometry circuit comprising of two independently tunable GaAs varactors. This arrangement allows observing Coulomb diamonds at 4.2 K under nearly best matching condition and optimal signal-to-noise ratio. We also discuss the rf leakage induced by the presence of the large top gate in MOS nanostructures and its consequence on the efficiency of rf-reflectometry. These results open the way to fast and sensitive readout in multi-gate architectures, including multi qubit platforms. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2045-2322 |
| Relation: | https://doaj.org/toc/2045-2322 |
| DOI: | 10.1038/s41598-021-99560-x |
| URL الوصول: | https://doaj.org/article/f7088c220e734d0da88ca46bb64b8f95 |
| رقم الأكسشن: | edsdoj.f7088c220e734d0da88ca46bb64b8f95 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 20452322 |
|---|---|
| DOI: | 10.1038/s41598-021-99560-x |