تقرير
Sub-Poissonian atom number fluctuations by three-body loss in mesoscopic ensembles
| العنوان: | Sub-Poissonian atom number fluctuations by three-body loss in mesoscopic ensembles |
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| المؤلفون: | Whitlock, S., Ockeloen, C. F., Spreeuw, R. J. C. |
| المصدر: | Phys. Rev. Lett. 104, 120402 (2010) |
| سنة النشر: | 2009 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Physics - Atomic Physics, Condensed Matter - Quantum Gases |
| الوصف: | We show that three-body loss of trapped atoms leads to sub-Poissonian atom number fluctuations. We prepare hundreds of dense ultracold ensembles in an array of magnetic microtraps which undergo rapid three-body decay. The shot-to-shot fluctuations of the number of atoms per trap are sub-Poissonian, for ensembles comprising 50--300 atoms. The measured relative variance or Fano factor $F=0.53\pm 0.22$ agrees very well with the prediction by an analytic theory ($F=3/5$) and numerical calculations. These results will facilitate studies of quantum information science with mesoscopic ensembles. Comment: 4 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.104.120402 |
| URL الوصول: | http://arxiv.org/abs/0911.4420 |
| رقم الأكسشن: | edsarx.0911.4420 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.104.120402 |
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