论文标题
均匀平面bose气体中原子二聚体相互作用的精确测量
Precision Measurements of Atom-Dimer Interactions in a Uniform Planar Bose Gas
论文作者
论文摘要
当通过电磁场作用时，冷量子气可以与二聚体或三聚体共存的样品产生样品，这提出了这些各种成分之间相互作用的问题。在这里，我们在$^{87} $ rb原子的退化气体中执行微波光相关，以在其电子接地状态下创建弱结合的二聚体。从密度诱导的光相结合线的移位中，我们测量了分子电位的两个最小结合状态的原子二聚体散射长度。我们还确定了最小结合状态的一个超精美歧管的完整能量图，我们可以通过简单的模型准确地繁殖。
Cold quantum gases, when acted upon by electromagnetic fields, can give rise to samples where isolated atoms coexist with dimers or trimers, which raises the question of the interactions between these various constituents. Here we perform microwave photoassociation in a degenerate gas of $^{87}$Rb atoms to create weakly-bound dimers in their electronic ground state. From the density-induced shift of the photoassociation line, we measure the atom-dimer scattering length for the two least-bound states of the molecular potential. We also determine the complete energy diagram of one hyperfine manifold of the least-bound state, which we accurately reproduce with a simple model.
