Dissipation induced coherence of a two-mode Bose-Einstein condensate.

  title={Dissipation induced coherence of a two-mode Bose-Einstein condensate.},
  author={Dirk Witthaut and F. Trimborn and Sandro Wimberger},
  journal={Physical review letters},
  volume={101 20},
We discuss the dynamics of a Bose-Einstein condensate in a double-well trap subject to phase noise and particle loss. The phase coherence of a weakly interacting condensate as well as the response to an external driving show a pronounced stochastic resonance effect: Both quantities become maximal for a finite value of the dissipation rate matching the intrinsic time scales of the system. Even stronger effects are observed when dissipation acts in concurrence with strong interparticle… CONTINUE READING

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