Surface excitations in a Bose-Einstein condensate

  title={Surface excitations in a Bose-Einstein condensate},
  • Published 2001
Collective modes which have no radial nodes and are localized close to the surface of the condensate are called surface modes. In a semiclassical picture these excitations can be considered the mesoscopic counterpart to tidal waves at the macroscopic level. Those excitations are of special interest since they show a crossover between collective and single-particle behavior, which is crucial for the existence of a critical rotational velocity. Furthermore, they probe the surface region of the… CONTINUE READING