تقرير
Preparation of mesoscopic atomic ensembles with single-particle resolution
| العنوان: | Preparation of mesoscopic atomic ensembles with single-particle resolution |
|---|---|
| المؤلفون: | Hüper, A., Pür, C., Hetzel, M., Geng, J., Peise, J., Kruse, I., Kristensen, M., Ertmer, W., Arlt, J., Klempt, C. |
| سنة النشر: | 2019 |
| المجموعة: | Condensed Matter Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, Condensed Matter - Quantum Gases, Physics - Atomic Physics |
| الوصف: | The analysis of entangled atomic ensembles and their application for interferometry beyond the standard quantum limit requires an accurate determination of the number of atoms. We present an accurate fluorescence detection technique for atoms that is fully integrated into an experimental apparatus for the production of many-particle entangled quantum states. Single-particle resolving fluorescence measurements for $1$ up to $30$ atoms are presented. According to our noise analysis, we extrapolate that the single-atom resolution extends to a limiting atom number of $390(20)$ atoms. We utilize the accurate atom number detection for a number stabilization of the laser-cooled atomic ensemble. For a target ensemble size of $7$ atoms prepared on demand, we achieve a $92(2)\,\%$ preparation fidelity and reach number fluctuations $18(1)\,\mathrm{dB}$ below the shot noise level using real-time feedback on the magneto-optical trap. Comment: 10 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1912.05689 |
| رقم الأكسشن: | edsarx.1912.05689 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |