دورية أكاديمية
Low-Frequency Correlated Charge-Noise Measurements Across Multiple Energy Transitions in a Tantalum Transmon
| العنوان: | Low-Frequency Correlated Charge-Noise Measurements Across Multiple Energy Transitions in a Tantalum Transmon |
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| المؤلفون: | Daniel M. Tennant, Luis A. Martinez, Kristin M. Beck, Sean R. O'Kelley, Christopher D. Wilen, R. McDermott, Jonathan L. DuBois, Yaniv J. Rosen |
| المصدر: | PRX Quantum, Vol 3, Iss 3, p 030307 (2022) |
| بيانات النشر: | American Physical Society, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Physics LCC:Computer software |
| مصطلحات موضوعية: | Physics, QC1-999, Computer software, QA76.75-76.765 |
| الوصف: | Transmon qubits fabricated with tantalum metal have been shown to possess energy relaxation times greater than 400μs and, as such, present an attractive platform for high precision, correlated noise studies across multiple higher-energy transitions. Tracking the multilevel fluctuating qudit frequencies with a precision enabled by the high coherence of the device allows us to extract the charge offset and quasiparticle dynamics. We observe qualitatively different charge-offset behavior in the tantalum device than those measured in previous low-frequency charge-noise studies. In particular, we find the charge-offset dynamics are dominated by rare, discrete jumps between a finite number of quasistationary charge configurations, a previously unobserved charge-noise process in superconducting qubits. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2691-3399 |
| Relation: | https://doaj.org/toc/2691-3399 |
| DOI: | 10.1103/PRXQuantum.3.030307 |
| URL الوصول: | https://doaj.org/article/075542aabbed41548e81e411c7f63e6a |
| رقم الأكسشن: | edsdoj.075542aabbed41548e81e411c7f63e6a |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 26913399 |
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| DOI: | 10.1103/PRXQuantum.3.030307 |