• Corpus ID: 232069116

Self-stabilized Bose polarons

@inproceedings{Schmidt2021SelfstabilizedBP,
  title={Self-stabilized Bose polarons},
  author={Richard Schmidt and Tilman Enss},
  year={2021}
}
The mobile impurity in a Bose-Einstein condensate (BEC) is a paradigmatic many-body problem. For weak interaction between the impurity and the BEC, the impurity deforms the BEC only slightly and it is well described within the Fröhlich model and the Bogoliubov approximation. For strong local attraction this standard approach, however, fails to balance the local attraction with the weak repulsion between the BEC particles and predicts an instability where an infinite number of bosons is… 

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