论文标题
超利用量子滴的有限范围效应
Finite-range effects in ultradilute quantum drops
论文作者
论文摘要
在第一个实验性实现中，使用了两个$^{39} $ k的超精细状态稀释的液体液滴，观察到理论和实验之间的一些差异。使用Lee-huang-yang对数据的标准分析超出平均场理论预测了临界数，这些数字显着取消了实验测量。同样，实验中滴的径向大小也比该理论预期的要大。使用新功能，该功能基于构成有限范围效应的量子蒙特卡洛结果，我们可以在临界数中解释差异的起源。该结果证明了必须包含有限范围校正以处理本设置中观察到的属性的必要性。径向大小的争议是根据两种混合物之间的最佳浓度比的偏离来理论的。
In the first experimental realization of dilute Bose-Bose liquid drops using two hyperfine states of $^{39}$K some discrepancies between theory and experiment were observed. The standard analysis of the data using the Lee-Huang-Yang beyond mean-field theory predicted critical numbers which were significantly off the experimental measurements. Also, the radial size of the drops in the experiment proved to be larger than expected from this theory. Using a new functional, which is based on quantum Monte Carlo results of the bulk phase incorporating finite-range effects, we can explain the origin of the discrepancies in the critical number. This result proves the necessity of including finite-range corrections to deal with the observed properties in this setup. The controversy on the radial size is reasoned in terms of the departure from the optimal concentration ratio between the two species of the mixture.
