National Changhua University of Education Institutional Repository : Item 987654321/14282
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题名: Transition Temperature of the Interacting Dipolar Bose Gas
作者: Kao, Yee-Mou;Jiang, T. F.
贡献者: 物理學系
日期: 2007
上传时间: 2012-09-10T06:38:48Z
出版者: The American Physical Society
摘要: We investigate the effects of long-ranged dipole-dipole potential on the transition temperature of a weakly interacting Bose gas. We apply the two-fluid model to derive the energy spectra of the thermal and the condensate parts. From the interaction modified spectra of the system, the formula for the shift of transition temperature was derived. Compared to the conventional weakly interacting Bose system with contact potential only where thermal effect is larger, we find that the condensate effect is about two times that of the thermal part in the dipolar system. Due to the relative smallness of dipole-dipole interaction with respect to the contact interaction in current dipolar Bose-Einstein condensation, we suggest to measure the dipolar effect by tuning the scattering length to negligible small by the Feshbach resonance technique.
關聯: Physical Review A, 75(3): 033607
显示于类别:[物理學系] 期刊論文

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