Matter-wave scattering on a BEC in a double-well potential
  We study the inelastic scattering of a probe particle on a Bose-Einstein condensate confined in a double-well potential. We identify prominent signatures of the underlying mean-field phase space in the scattering signal and derive an analytical expression for the inelastic scattering cross section. 
Stefan Hunn, Moritz Hiller, Tsampikos Kottos, Doron Cohen, and Andreas   Buchleitner
quant-ph cond-mat.quant-gas