论文标题
观察到超电原子的热气体二聚体相干振荡的观察
Observation of coherent oscillations in association of dimers from a thermal gas of ultracold atoms
论文作者
论文摘要
我们报告了由超速原子的热气体形成的弱结合二聚体转化效率的相干振荡的观察。当宽连续体共互联到离散的结合状态时，气体的有限热能会导致连贯性丧失。连贯性的恢复可以通过穿着的分子能级的非绝热过渡来实现，这些跃迁是由具有快速包膜动力学的强调制脉冲引起的。验证了观察相干振荡的条件，并证明了对其性质的控制。主要的实验结果由理论建模和数值计算支持。观察到的结果可能会导致对一般研究的重新兴趣，即当两者的特性得到完全控制时，与宽带连续体结合的一般研究。
We report the observation of coherent oscillations in conversion efficiency of weakly-bound dimers formed from a thermal gas of ultracold atoms. Finite thermal energy of the gas causes loss of coherence when a broad continuum is resonantly coupled to a discrete bound state. Restoration of the coherence can be achieved through non-adiabatic transitions of the dressed molecular energy level that are induced by a strong modulation pulse with fast envelope dynamics. Conditions to observe coherent oscillations are verified, and control of their properties is demonstrated. The main experimental findings are supported by theoretical modeling and numerical calculations. The observed results may lead to a renewed interest in general studies of a discrete energy level coupled to a broadband continuum when the properties of both are fully controlled.
