论文标题
大型平衡磁陷阱中的不稳定性阈值
Instability threshold in a large balanced magneto-optical trap
论文作者
论文摘要
当诱捕激光器的频率接近原子共振时，在磁光陷阱中制备的巨大的冷原子会产生时空的不稳定性。该系统具有与捕获的等离子体的紧密相似性，从而通过散射光子的交换来诱导有效的库仑相互作用，并导致被困原子的集体非线性动力学。我们在本文中报告了对不稳定性阈值的详细实验研究，并与相互作用激光驱动的云进行的三维模拟进行了比较。
Large clouds of cold atoms prepared in a magneto-optical trap can develop spatio-temporal instabilities when the frequency of the trapping lasers is brought close to the atomic resonance. This system bears close similarities with trapped plasmas, whereby effective Coulomb interactions are induced by the exchange of scattered photons and lead to collective nonlinear dynamics of the trapped atoms. We report in this paper a detailed experimental study of the instability threshold, and comparisons with three-dimensional simulations of the interacting, laser-driven cloud.
