论文标题
排斥2D和3D玻色极性的平均场研究
Mean-field study of repulsive 2D and 3D Bose polarons
论文作者
论文摘要
提出了在两个维度和三个维度中对玻色极化问题问题的详细平均治疗。尤其是，假设杂质浸入稀卵气中，并通过硬球两体电位与玻色子相互作用，我们计算其光谱的低摩孔参数，即结合能和有效质量。通过将我们的结果与蒙特卡洛模拟数据进行比较，讨论了均值场中均值方法在bose-Einstein冷凝物中的适用性的限制。
The detailed mean-field treatment of the Bose polaron problem in two and three dimensions is presented. Particularly, assuming that impurity is immersed in the dilute Bose gas and interacts with bosons via the hard-sphere two-body potential, we calculate the low-momentum parameters of its spectrum, namely, the binding energy and the effective mass. The limits of applicability of the mean-field approach to a problem of mobile impurity in Bose-Einstein condensates are discussed by comparing our results to the Monte Carlo simulations data.
