Generation of Cherenkov waves in the flow of a Bose-Einstein condensate past an obstacle

Yu G. Gladush, L. A. Smirnov, A. M. Kamchatnov

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

The theory of stationary linear wave patterns generated in a supersonic flow of a Bose-Einstein condensate past a point-like obstacle is developed. It is shown that they are located mainly outside the Mach cone corresponding to infinitely long wavelengths. The shape of wave crests and dependence of amplitude on coordinates far enough from the obstacle are calculated. The results are in good agreement with the results of numerical simulations. The theory gives a qualitative description of experiments with Bose-Einstein condensate flow past an obstacle after the condensate's release from a trap.

Original languageEnglish
Article number165301
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume41
Issue number16
DOIs
Publication statusPublished - 28 Aug 2008
Externally publishedYes

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