تقرير
Engineering Dark Solitary waves in Ring-Trap Bose-Einstein condensates
| العنوان: | Engineering Dark Solitary waves in Ring-Trap Bose-Einstein condensates |
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| المؤلفون: | Gallucci, D., Proukakis, N. P. |
| سنة النشر: | 2015 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Quantum Gases |
| الوصف: | We demonstrate the feasibility of generation of quasi-stable counter-propagating solitonic structures in an atomic Bose-Einstein condensate confined in a realistic toroidal geometry, and identify optimal parameter regimes for their experimental observation. Using density engineering we numerically identify distinct regimes of motion of the emerging macroscopic excitations, including both solitonic motion along the azimuthal ring direction, such that structures remain visible after multiple collisions even in the presence of thermal fluctuations, and snaking instabilities leading to the decay of the excitations into vortical structures. Our analysis, which considers both mean field effects and fluctuations, is based on the ring trap geometry of Murray et al. Phys. Rev. A 88 053615 2013. Comment: changes incorporating referee reports. higher resolution images and videos available upon request |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1367-2630/18/2/025004 |
| URL الوصول: | http://arxiv.org/abs/1510.07078 |
| رقم الأكسشن: | edsarx.1510.07078 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/1367-2630/18/2/025004 |
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