Cooling phonon modes of a Bose condensate with uniform few body losses

@article{Bouchoule2018CoolingPM,
  title={Cooling phonon modes of a Bose condensate with uniform few body losses},
  author={I. Bouchoule and Maximilian Schemmer and Carsten Henkel},
  journal={SciPost Physics},
  year={2018}
}
We present a general analysis of the cooling produced by losses on condensates or quasi-condensates. We study how the occupations of the collective phonon modes evolve in time, assuming that the loss process is slow enough so that each mode adiabatically follows the decrease of the mean density. The theory is valid for any loss process whose rate is proportional to the jjth power of the density, but otherwise spatially uniform. We cover both homogeneous gases and systems confined in a smooth… 

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