Stability analysis of sonic horizons in Bose-Einstein condensates

  title={Stability analysis of sonic horizons in Bose-Einstein condensates},
  author={Carlos Barcel{\'o} and Andr{\'e}s Cano and Luis J. Garay and Gil Jannes},
  journal={Physical Review D},
We examine the linear stability of various configurations in Bose-Einstein condensates with steplike sonic horizons. These configurations are chosen in analogy with gravitational systems with a black hole horizon, a white hole horizon, and a combination of both. We discuss the role of different boundary conditions in this stability analysis, paying special attention to their meaning in gravitational terms. We highlight that the stability of a given configuration, not only depends on its… Expand

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