论文标题
光学传送带中原子的速度，保留损失和动作加热
Speed, retention loss, and motional heating of atoms in an optical conveyor belt
论文作者
论文摘要
在理论和实验中，高速原子的高速运输问题受到了很大的关注。许多理论工作都集中在一般问题的解决方案上，通常假设谐波陷阱电位或一维几何形状。但是，在光学输送带的情况下，这些假设并不总是有效的。在这里，我们介绍了各种运动参数对光学传送带中转运原子的加热和保留的影响的实验和数值研究。我们的数值模型专门用于移动光学晶格的几何形状，并在密度矩阵形式主义中使用dephasing来说明横平中运动的影响。我们通过与实验测量值进行比较来验证模型，并使用它进一步深入了解传送带的性能与系统的各种参数之间的关系。
The problem of high-speed transport for cold atoms with minimal heating has received considerable attention in theory and experiment. Much theoretical work has focused on solutions of general problems, often assuming a harmonic trapping potential or a 1D geometry. However in the case of optical conveyor belts these assumptions are not always valid. Here we present experimental and numerical studies of the effects of various motional parameters on heating and retention of atoms transported in an optical conveyor. Our numerical model is specialized to the geometry of a moving optical lattice and uses dephasing in the density matrix formalism to account for effects of motion in the transverse plane. We verify the model by a comparison with experimental measurements, and use it to gain further insight into the relationship between the conveyor's performance and the various parameters of the system.
