تقرير
Enhanced charge detection of spin qubit readout via an intermediate state
| العنوان: | Enhanced charge detection of spin qubit readout via an intermediate state |
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| المؤلفون: | Studenikin, S. A., Thorgrimson, J., Aers, G. C., Kam, A., Zawadzki, P., Wasilewski, Z. R., Bogan, A., Sachrajda, A. S. |
| سنة النشر: | 2012 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | We employ an intermediate excited charge state of a lateral quantum dot device to increase the charge detection contrast during the qubit state readout procedure, allowing us to increase the visibility of coherent qubit oscillations. This approach amplifies the coherent oscillation magnitude but has no effect on the detector noise resulting in an increase in the signal to noise ratio. In this letter we apply this scheme to demonstrate a significant enhancement of the fringe contrast of coherent Landau-Zener-Stuckleberg oscillations between singlet S and triplet T+ two-spin states. Comment: 3 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1063/1.4749281 |
| URL الوصول: | http://arxiv.org/abs/1206.0778 |
| رقم الأكسشن: | edsarx.1206.0778 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1063/1.4749281 |
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