تقرير
The universality of the Efimov three-body parameter
| العنوان: | The universality of the Efimov three-body parameter |
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| المؤلفون: | D'Incao, J. P., Wang, J., Esry, B. D., Greene, C. H. |
| المصدر: | Few-Body Systems 54, 1523 (2013) |
| سنة النشر: | 2012 |
| المجموعة: | Condensed Matter Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Quantum Gases, Physics - Atomic Physics, Quantum Physics |
| الوصف: | In this paper we discuss the recent discovery of the universality of the three-body parameter (3BP) from Efimov physics. This new result was identified by recent experimental observations in ultracold quantum gases where the value of the s-wave scattering length, $a=a_-$, at which the first Efimov resonance is created was found to be nearly the same for a range of atomic species --- if scaled as $a_-/r_{\rm vdW}$, where $r_{\rm vdW}$ is the van der Waals length. Here, we discuss some of the physical principles related to these observations that emerge from solving the three-body problem with van der Waals interactions in the hyperspherical formalism. We also demonstrate the strong three-body multichannel nature of the problem and the importance of properly accounting for nonadiabatic effects. Comment: 5 pages, 2 figures; Presented at the 20th International IUPAP Conference on Few-Body Problems in Physics, 20 - 25 August, 2012, Fukuoka, Japan |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1007/s00601-013-0616-2 |
| URL الوصول: | http://arxiv.org/abs/1211.7357 |
| رقم الأكسشن: | edsarx.1211.7357 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1007/s00601-013-0616-2 |
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