Formation of stationary three-dimensional (3D) wave patterns generated by a small pointlike impurity moving through a Bose-Einstein condensate with supersonic velocity is studied. Asymptotic formulae for a stationary far-field density distribution are obtained. Comparison with the three-dimensional numerical simulations demonstrates that these formulae are accurate enough already at the distances from the obstacle equal to a few wavelengths.
|期刊||Physical Review A - Atomic, Molecular, and Optical Physics|
|出版狀態||Published - 2009 五月 1|
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics