تقرير
Flopping-mode electric dipole spin resonance
| العنوان: | Flopping-mode electric dipole spin resonance |
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| المؤلفون: | Croot, X., Mi, X., Putz, S., Benito, M., Borjans, F., Burkard, G., Petta, J. R. |
| المصدر: | Phys. Rev. Research 2, 012006 (2020) |
| سنة النشر: | 2019 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Quantum Physics |
| الوصف: | Traditional approaches to controlling single spins in quantum dots require the generation of large electromagnetic fields to drive many Rabi oscillations within the spin coherence time. We demonstrate "flopping-mode" electric dipole spin resonance, where an electron is electrically driven in a Si/SiGe double quantum dot in the presence of a large magnetic field gradient. At zero detuning, charge delocalization across the double quantum dot enhances coupling to the drive field and enables low power electric dipole spin resonance. Through dispersive measurements of the single electron spin state, we demonstrate a nearly three order of magnitude improvement in driving efficiency using flopping-mode resonance, which should facilitate low power spin control in quantum dot arrays. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevResearch.2.012006 |
| URL الوصول: | http://arxiv.org/abs/1905.00346 |
| رقم الأكسشن: | edsarx.1905.00346 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevResearch.2.012006 |
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