Report
Suppression of Penning ionization by orbital angular momentum conservation
| العنوان: | Suppression of Penning ionization by orbital angular momentum conservation |
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| المؤلفون: | Dulitz, Katrin, Sixt, Tobias, Guan, Jiwen, Grzesiak, Jonas, Debatin, Markus, Stienkemeier, Frank |
| المصدر: | Phys. Rev. A 102, 022818 (2020) |
| سنة النشر: | 2019 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Chemical Physics, Physics - Atomic Physics |
| الوصف: | The efficient suppression of Penning-ionizing collisions is a stringent requirement to achieve quantum degeneracy in metastable rare gases. Thus far, such loss processes have been avoided by electron-spin polarizing the collision partners. Here, we report on the efficient suppression of Penning ionization in collisions between metastable He and laser-excited Li atoms. The results illustrate that not only the electron spin, but also $\Lambda$ - the projection of the total molecular orbital angular momentum along the internuclear axis - is conserved during the ionization process. Our findings suggest that $\Lambda$ conservation can be used as a more general means of reaction control, for example, to improve schemes for the simultaneous laser cooling and trapping of metastable He and alkali atoms. Comment: 5 pages, 2 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevA.102.022818 |
| URL الوصول: | http://arxiv.org/abs/1909.01694 |
| رقم الانضمام: | edsarx.1909.01694 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevA.102.022818 |
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