We propose a scheme for realizing the long-term continuous output of an atom laser. The process of the phase unification of the new entered BEC atoms with the remaining atoms in the main BEC trap, the coupling of the atoms from the subsidiary BEC to the main BEC and the time rates of all the different processes are discussed in this scheme. The duration of the continuous output of the atom laser beam is actually in unlimited and thus creates the possibilities of their practical application.
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