标题： Efimov态在Li-Cs混合物中的极小模型研究 显示英文标题

标题： Efimov states in Li-Cs mixtures within a minimal model

摘要： 我们采用一种极小的零范围模型来描述由两个铯原子和一个锂原子组成的三体态的束缚态谱。利用双体相互作用的宽Feshbach共振模型，我们表明对于决定原子势短程行为的三体参数的特定值，近期的实验数据可以被惊人地良好描述，而这些值超出了零范围模型的适用范围。研究作为三体参数函数的能谱表明，实验中观察到的最低态可能受到有限范围修正的影响。我们还考虑了锂原子的费米简并与相应的Efimov态的泡利阻塞问题。 显示英文摘要

摘要： We use a minimal zero-range model for describing the bound state spectrum of three-body states consisting of two Cesium and one Lithium atom. Using a broad Feshbach resonance model for the two-body interactions, we show that recent experimental data can be described surprisingly well for particular values of the three-body parameter that governs the short-range behavior of the atomic potentials and is outside the scope of the zero-range model. Studying the spectrum as a function of the three-body parameter suggests that the lowest state seen in experiment could be influenced by finite range corrections. We also consider the question of Fermi degeneracy and corresponding Pauli blocking of the Lithium atoms on the Efimov states.