Report
Temperature-induced miscibility of impurities in trapped Bose gases
| العنوان: | Temperature-induced miscibility of impurities in trapped Bose gases |
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| المؤلفون: | Pascual, G., Wasak, T., Negretti, A., Astrakharchik, G. E., Boronat, J. |
| المصدر: | Phys. Rev. Research 6, L022014, 2024 |
| سنة النشر: | 2024 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Quantum Gases |
| الوصف: | We study the thermal properties of impurities embedded in a repulsive Bose gas under a harmonic trapping potential. In order to obtain exact structural properties in this inhomogeneous many-body system, we resort to the path-integral Monte Carlo method. We find that, at low temperatures, a single impurity is expelled to the edges of the bath cloud if the impurity-boson coupling constant is larger than the boson-boson one. However, when the temperature is increased, but still in the Bose-condensed phase, the impurity occupies the core of the trap and, thus, the system becomes miscible. This thermal-induced miscibility transition is also observed for a finite concentration of impurities in this inhomogeneous system. We find that the transition temperature for miscibility depends on the impurity-boson interaction and we indicate a novel nondestructive method to measure the temperature of a system based on the studied phenomenon. Comment: 7 pages, 7 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevResearch.6.L022014 |
| URL الوصول: | http://arxiv.org/abs/2401.03926 |
| رقم الانضمام: | edsarx.2401.03926 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevResearch.6.L022014 |
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