Generalized Two-State Theory for an Atom Laser and Its Interference |
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| Authors: | YI XueXi WANG HaiJun SU JunChen SUN ChangPu |
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| Affiliation: | 1. Institute of Theoretical Physics, Northeast Normal University, Changchun 130024, China;2. Department of Physics, Jilin University, Changchun 130023, China;3. Institute of Theoretical Chemistry, Jilin University, Changchun 130023, China;4. Institute of Theoretical Physics, Academia Sinica, Beijing 100080, China |
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| Abstract: | We present a generalized two-state theory to study the output coupler for Bose-Einstein condensate atoms and its interference. The results show that the fraction of outcoupled atoms can be adjusted between 0% and 100% by mrying the amplitude of the rf. radiation, and the interference patterns of the two coherent outputs that are coupled out of a double-well trapped potential vary with time. Moreover, we study the influence of atom-atom interactions on the output. In contrast with the case without atom-atom interactions, collapses and revivals appear in the number of the output atoms. |
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| Keywords: | atom laser two-state theory Bose-Einstein condensation |
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