| We study Josephson oscillations of a two component Bose-Einstein condensate (BEC) in a double well-potential. We demonstrate that in the strongly polarized case, the less populated component exhibits anti-Josephson behavior, i.e. oscillates in phase with the more populated one. For the case of balanced populations, the oscillations frequency does not depend on atomic interactions. Both effects may serve to control the Josephson oscillations and to measure precisely the relevant scattering lengths. |
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