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A Scheme for Realizing the Continuous Wave Atom Laser |
| ZHOU Xiao-Ji;WANG Yi-Qiu;YANG Dong-Hai |
| Department of Electronics, Peking University, Beijing 100871 |
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ZHOU Xiao-Ji, WANG Yi-Qiu, YANG Dong-Hai 2000 Chin. Phys. Lett. 17 784-786 |
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Abstract We propose a scheme for realizing the long-term continuous output of an atom laser. In this scheme the cold atoms in several subsidiary Bose-Einstein condensates (BEC) will be coupled one by one in turn into one main BEC which serves for the continuous output of a coherent atomic beam. We discuss the process of the phase unification of the newly entered BEC atoms with the remaining atoms in the main BEC trap. An ideal dynamical equilibrium can be established when the transition rate of the uncondensed atoms transforming into the condensate and the decay rate of coupling output satisfy some conditions. The coupling method from the subsidiary BEC to the main BEC and the time rates of all different processes are considered.
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03.75.Fi
05.30.Jp
32.80.Pj
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Published: 01 November 2000
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