报告摘要: We demonstrate matter-wave self-imaging resulting from atomic center-of-mass motion-based interference. We show that non-negligible atomic center-of-mass motion and an instantaneous Doppler shift can drastically change the condensate momentum distribution, resulting in a periodic collapse and the recurrence of condensate diffraction probability as a function of the stationary light-field pulsing time. The observed matter-wave self-imaging is characterized by an atomic center-of-mass motion induced population amplitude interference in the presence of the light field that simultaneously collapses all high (n > 1) diffraction orders and maximizes the zero-th diffraction component.　We discuss the connections between the observed self-imaging and temporal matter-wave Talbot effect.

报告人简介：
L. Deng,
Ph.D. , Senior Research Physicist,
Electron & Optical Physics Division, Physics Laboratory,
National Institute of Standards & Technology,
Gaithersburg, Maryland USA
中国科学院武汉物理与数学研究所冷原子物理中心学术委员会主任中国科学院上海光学与精密仪器研究所名誉研究员


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