تقرير
Single-shot latched readout of a quantum dot qubit using barrier gate pulsing
| العنوان: | Single-shot latched readout of a quantum dot qubit using barrier gate pulsing |
|---|---|
| المؤلفون: | Park, Sanghyeok, Benson, Jared, Corrigan, J., Dodson, J. P., Coppersmith, S. N., Friesen, Mark, Eriksson, M. A. |
| سنة النشر: | 2024 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Quantum Physics |
| الوصف: | Latching techniques are widely used to enhance readout of qubits. These methods require precise tuning of multiple tunnel rates, which can be challenging to achieve under realistic experimental conditions, such as when a qubit is coupled to a single reservoir. Here, we present a method for single-shot measurement of a quantum dot qubit with a single reservoir using a latched-readout scheme. Our approach involves pulsing a barrier gate to dynamically control qubit-to-reservoir tunnel rates, a method that is readily applicable to the latched readout of various spin-based qubits. We use this method to enable qubit state latching and to reduce the qubit reset time in measurements of coherent Larmor oscillations of a Si/SiGe quantum dot hybrid qubit. Comment: 6 pages, including supplemental materials |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2408.15380 |
| رقم الأكسشن: | edsarx.2408.15380 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |