Quantum Reflection of Ultra-Cold Atoms from Surfaces

这个研究项目专注于研究原子在非常小的入射动能下从表面反射的情况。这项工作将依靠中性原子冷却和囚禁方面的最新进展来创建超冷原子束。原子将以受控的速度发射到表面，反射概率将被测量。作为对该系统的第一次测试，将测量来自逝去波镜的量子反射。在下一阶段的研究中，量子反射将在原子干涉仪中进行研究。然后，为了探测原子与表面的基本相互作用，将在没有逝去波的情况下研究各种表面的反射。

9876598RaizenThis research program focuses on the study of reflection of atoms from surfaces at very small incident kinetic energies. The work will rely on recent advances in cooling and trapping of neutral atoms to create an ultracold atomic beam. The atoms will be launched at a controlled velocity toward a surface and the reflection probability will be measured. As a first test of the system, quantum reflection from an evanescent wave mirror will be measured. In the next stage of research, quantum reflection will be studied in an atomic interferometer. Reflection from a variety of surfaces will then be studied without the evanescent wave in order to probe fundamental atom-surface interactions.