论文标题
表征超低偏光thulium的Fano-Feshbach共振的温度依赖性
Characterizing the temperature dependence of Fano-Feshbach resonances of Ultracold Polarized Thulium
论文作者
论文摘要
最近的研究表明，对于三位一体的某些Fano-Feshbach共振，温度的温度转移异常。这些异常是通过光学偶极陷阱中光强度的变化来解释的，光学偶极陷阱伴随着温度的变化。另外，证明了与温度相关的间隔统计量的转化[1]。在这里，我们分析了二极管二甲体原子的分离的S-和D型Fano-Feshbach共振的变化，以温度为固定的光学偶极子TRAP。这些测量与与温度相关的共振变化的三体重组理论一致，并可以提取共振参数，尤其是封闭通道状态的磁矩。该参数以及开放通道的已知极化能力使我们能够将温度和鲜明的变化分离为共振的总体变化，并显示出Stark效应在整体移位中的主要作用。
Recent studies demonstrated anomalous temperature shifts for some Fano-Feshbach resonances of thulium atoms. These anomalies were explained by the variation in light intensity in the optical dipole trap, which accompanied changes in temperature. In addition, a temperature-related transformation of the statistics of the interresonance spacing was demonstrated [1]. Here, we analyze the shifts of isolated s- and d-type Fano-Feshbach resonances of ultracold thulium atoms with temperature for a fixed depth of an optical dipole trap. The measurements are consistent with the 3-body recombination-based theory of the temperature-related resonance shift and enable the extraction of the resonance parameters, particularly the magnetic moments of closed channel states. This parameter and the known polarizability of the open channel enable us to separate the contributions of the temperature and Stark shift to the overall shift of the resonances and show the dominant role of the Stark effect in the overall shift.
