论文标题
在Bose-Einstein冷凝物中原子分子转换的快速缩放
Fast-forward scaling of atom-molecule conversion in Bose-Einstein condensates
论文作者
论文摘要
强大的刺激拉曼精确通道是控制非线性量子系统的必要条件，其广泛应用范围从超低分子，非线性光学器件到超级化学。受到绝热性快捷方式的启发，我们提出了涉及的非线性的刺激拉曼绝热过程的快速缩放缩放，描述了通过可控制的外部场的转移从原子Bose-Einstein冷凝物转移到分子。证明原子 - 分子转换的忠诚度和鲁棒性可超过传统的绝热通道，并在快速前进的驾驶场的帮助下。最后，我们的结果扩展到分数刺激的拉曼绝热过程，以使原子和分子状态的相干叠加。
Robust stimulated Raman exact passages are requisite for controlling nonlinear quantum systems, with the wide applications ranging from ultracold molecules, non-linear optics to superchemistry. Inspired by shortcuts to adiabaticity, we propose the fast-forward scaling of stimulated Raman adiabatic processes with the nonlinearity involved, describing the transfer from an atomic Bose-Einstein condensate to a molecular one by controllable external fields. The fidelity and robustness of atom-molecule conversion are shown to surpass those of conventional adiabatic passages, assisted by fast-forward driving field. Finally, our results are extended to the fractional stimulated Raman adiabatic processes for the coherent superposition of atomic and molecular states.
