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Matter-wave self-imaging by atomic center-of-mass motion induced interference



Ke Li, Lu Deng, Edward W. Hagley, M.S. Zhan, Marvin G. Payne


We demonstrate matter-wave self-imaging in a stationary light field in the non-Raman-Nath limit. We show that in a non-instantaneous pulsed standing wave grating significant contributions due to the non-negligible atomic center of mass motion and instantaneous Doppler shift can drastically change the condensate momentum distribution, resulting in periodical collapses and recurrences of condensate diffraction probability as a function of the grating pulsing time. The observed matter-wave self-imaging is fundamentally different from the temperal, matter-wave Talbot effect. It is characterized by an atomic population amplitude interference, in the presence of the light field, that simultaneously minimizes all higher (n > 1) diffraction orders and maximizes the zero-th diffraction component.
Physical Review Letters


gain, matter wave, Raman-Nath regime diffraction, superradiance effect


Li, K. , Deng, L. , Hagley, E. , Zhan, M. and Payne, M. (2008), Matter-wave self-imaging by atomic center-of-mass motion induced interference, Physical Review Letters, [online],, (Accessed June 20, 2024)


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Created December 17, 2008, Updated October 12, 2021