Direct Simulation Monte Carlo method for cold atom dynamics: classical Boltzmann equation in the quantum collision regime
Direct Simulation Monte Carlo method for cold atom dynamics: classical Boltzmann equation in the quantum collision regime
复制标题
冷原子动力学的直接模拟蒙特卡罗方法：量子碰撞状态下的经典玻尔兹曼方程
DOI：
10.1103/physreva.84.023612
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发表时间：
2011
影响因子：
2.9
通讯作者：
P. B. Blakie
中科院分区：
文献类型：
--
作者：
A. Wade;D. Baillie;P. B. Blakie
本文发展了一种模拟非简并超冷气体高度非平衡动力学的直接模拟Monte Carlo方法。我们表明，我们的方法可以模拟实验中观察到的两个热云的高能碰撞[托马斯等人。93，173201（2004）]，其需要包括超s波散射。我们还考虑了这个系统的长时间动力学，表明这将是一个实际的实验方案，用于测试玻尔兹曼方程和研究再热。
In this paper, we develop a direct simulation Monte Carlo method for simulating highly nonequilibrium dynamics of nondegenerate ultracold gases. We show that our method can simulate the high-energy collision of two thermal clouds in the regime observed in experiments [Thomas et al. Phys. Rev. Lett. 93, 173201 (2004)], which requires the inclusion of beyond s-wave scattering. We also consider the long-time dynamics of this system, demonstrating that this would be a practical experimental scenario for testing the Boltzmann equation and studying rethermalization.