تقرير
Atom-dimer scattering and long-lived trimers in fermionic mixtures
| العنوان: | Atom-dimer scattering and long-lived trimers in fermionic mixtures |
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| المؤلفون: | Levinsen, J., Tiecke, T. G., Walraven, J. T. M., Petrov, D. S. |
| المصدر: | Phys. Rev. Lett. 103, 153202 (2009) |
| سنة النشر: | 2009 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Quantum Gases, Condensed Matter - Other Condensed Matter |
| الوصف: | We consider a heteronuclear fermionic mixture on the molecular side of an interspecies Feshbach resonance and discuss atom-dimer scattering properties in uniform space and in the presence of an external confining potential, restricting the system to a quasi-2D geometry. We find that there is a peculiar atom-dimer p-wave resonance which can be tuned by changing the frequency of the confinement. Our results have implications for the ongoing experiments on Lithium-Potassium mixtures, where this mechanism allows for switching the p-wave interaction between a K atom and Li-K dimer from attractive to repulsive, and forming a weakly bound trimer with unit angular momentum. We show that such trimers are long-lived and the atom-dimer resonance does not enhance inelastic relaxation in the mixture, making it an outstanding candidate for studies of p-wave resonance effects in a many-body system. Comment: 4 pages, 2 figures, published version |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.103.153202 |
| URL الوصول: | http://arxiv.org/abs/0907.5523 |
| رقم الأكسشن: | edsarx.0907.5523 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.103.153202 |
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