标度函数在铯-133原子三体复合中的应用
Scaling functions applied to three-body recombination of Cesium-133 atoms
摘要：
我们证明了Efimov物理在最近测量的铯-133原子的复合率的影响。通过采用先前计算的结果的能量依赖的氦-4原子的复合率，我们得到三个独立的标度函数，能够描述的复合率在一个大的能量范围内的相同的玻色子与大的散射长度。我们基准这些和以前获得的标度函数成功地比较他们的预测与全原子二聚体相移计算与人工氦-4潜力产生大的散射长度。最后利用这些函数的普适性，计算了具有较大正散射长度的铯-133原子的三体复合率，并与Innsbruck小组的实验数据进行了比较，结果吻合良好。
英文摘要：
We demonstrate the implications of Efimov physics in the recently measured recombination rate of Cesium-133 atoms. By employing previously calculated results for the energy dependence of the recombination rate of Helium-4 atoms, we obtain three independent scaling functions that are capable of describing the recombination rates over a large energy range for identical bosons with large scattering length. We benchmark these and previously obtained scaling functions by successfully comparing their predictions with full atom-dimer phase shift calculations with artificial Helium-4 potentials yielding large scattering lengths. Exploiting universality, we finally use these functions to determine the 3-body recombination rate of Cesium-133 atoms with large positive scattering length, compare our results to experimental data obtained by the Innsbruck group and find excellent agreement.
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