تقرير
Micromotion minimisation by synchronous detection of parametrically excited motion
| العنوان: | Micromotion minimisation by synchronous detection of parametrically excited motion |
|---|---|
| المؤلفون: | Nadlinger, D. P., Drmota, P., Main, D., Nichol, B. C., Araneda, G., Srinivas, R., Stephenson, L. J., Ballance, C. J., Lucas, D. M. |
| سنة النشر: | 2021 |
| المجموعة: | Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Physics - Atomic Physics, Quantum Physics |
| الوصف: | Precise control of charged particles in radio-frequency (Paul) traps requires minimising excess micromotion induced by stray electric fields. We present a method to detect and compensate such fields through amplitude modulation of the radio-frequency trapping field. Modulation at frequencies close to the motional modes of the trapped particle excites coherent motion whose amplitude linearly depends on the stray field. In trapped-ion experiments, this motion can be detected by recording the arrival times of photons scattered during laser cooling. Only a single laser beam is required to resolve fields in multiple directions. In a demonstration using a $^{88}\mathrm{Sr}^{+}$ ion in a surface electrode trap, we achieve a sensitivity of $0.1\, \mathrm{V}\, \mathrm{m}^{-1}\, /\, \sqrt{\mathrm{Hz}}$ and a minimal uncertainty of $0.015\, \mathrm{V}\, \mathrm{m}^{-1}$. Comment: 11 pages, 6 figures (+appendix of 5 pages, 4 figures) |
| نوع الوثيقة: | Working Paper |
| الوصول الحر: | http://arxiv.org/abs/2107.00056Test |
| رقم الانضمام: | edsarx.2107.00056 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |