Stationary wave patterns generated by an impurity moving with supersonic velocity through a Bose-Einstein condensate

T. L. Horng; S. C. Gou; T. C. Lin; G. A. El; A. P. Itin; A. M. Kamchatnov

doi:10.1103/PhysRevA.79.053619

Stationary wave patterns generated by an impurity moving with supersonic velocity through a Bose-Einstein condensate

T. L. Horng^*, S. C. Gou, T. C. Lin, G. A. El, A. P. Itin, A. M. Kamchatnov

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

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.

Original language	English
Article number	053619
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	79
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevA.79.053619
Publication status	Published - 13 May 2009
Externally published	Yes

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AU - El, G. A.

AU - Itin, A. P.

AU - Kamchatnov, A. M.

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AB - 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.

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Stationary wave patterns generated by an impurity moving with supersonic velocity through a Bose-Einstein condensate

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