Spatial dispersive shock waves generated in supersonic flow of Bose-Einstein condensate past slender body

G. A. El; A. M. Kamchatnov

doi:10.1016/j.physleta.2005.08.099

Spatial dispersive shock waves generated in supersonic flow of Bose-Einstein condensate past slender body

G. A. El, A. M. Kamchatnov^*

^*Corresponding author for this work

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Abstract

Supersonic flow of Bose-Einstein condensate past macroscopic obstacles is studied theoretically. It is shown that in the case of large obstacles the Cherenkov cone transforms into a stationary spatial shock wave which consists of a number of spatial dark solitons. Analytical theory is developed for the case of obstacles having a form of a slender body. This theory explains qualitatively the properties of such shocks observed in recent experiments on nonlinear dynamics of condensates of dilute alkali gases.

Original language	English
Pages (from-to)	192-196
Number of pages	5
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	350
Issue number	3-4
Early online date	13 Oct 2005
DOIs	https://doi.org/10.1016/j.physleta.2005.08.099
Publication status	Published - 6 Feb 2006
Externally published	Yes

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Spatial dispersive shock waves generated in supersonic flow of Bose-Einstein condensate past slender bodySubmitted manuscript, 158 KB

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abstract = "Supersonic flow of Bose-Einstein condensate past macroscopic obstacles is studied theoretically. It is shown that in the case of large obstacles the Cherenkov cone transforms into a stationary spatial shock wave which consists of a number of spatial dark solitons. Analytical theory is developed for the case of obstacles having a form of a slender body. This theory explains qualitatively the properties of such shocks observed in recent experiments on nonlinear dynamics of condensates of dilute alkali gases.",

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AU - Kamchatnov, A. M.

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AB - Supersonic flow of Bose-Einstein condensate past macroscopic obstacles is studied theoretically. It is shown that in the case of large obstacles the Cherenkov cone transforms into a stationary spatial shock wave which consists of a number of spatial dark solitons. Analytical theory is developed for the case of obstacles having a form of a slender body. This theory explains qualitatively the properties of such shocks observed in recent experiments on nonlinear dynamics of condensates of dilute alkali gases.

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IS - 3-4

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Spatial dispersive shock waves generated in supersonic flow of Bose-Einstein condensate past slender body

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