Mean-field dynamics of a non-Hermitian Bose-Hubbard dimer.

نویسندگان

  • E M Graefe
  • H J Korsch
  • A E Niederle
چکیده

We investigate an N-particle Bose-Hubbard dimer with an additional effective decay term in one of the sites. A mean-field approximation for this non-Hermitian many-particle system is derived, based on a coherent state approximation. The resulting nonlinear, non-Hermitian two-level dynamics, in particular, the fixed point structures showing characteristic modifications of the self-trapping transition, are analyzed. The mean-field dynamics is found to be in reasonable agreement with the full many-particle evolution.

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عنوان ژورنال:
  • Physical review letters

دوره 101 15  شماره 

صفحات  -

تاریخ انتشار 2008