Radiation of linear waves in the stationary flow of a Bose-Einstein condensate past an obstacle

Yu G. Gladush*, G. A. El, A. Gammal, A. M. Kamchatnov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)
2 Downloads (Pure)

Abstract

Using stationary solutions of the linearized two-dimensional Gross-Pitaevskii equation, we describe the wave pattern occurring in the supersonic flow of a Bose-Einstein condensate past an obstacle. It is shown that these waves are generated outside the Mach cone. The developed analytical theory is confirmed by numerical simulations of the flow past body problem in the frame of the full nonstationary Gross-Pitaevskii equation. Relation of the developed theory with recent experiments is discussed.

Original languageEnglish
Article number033619
Number of pages5
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume75
Issue number3
DOIs
Publication statusPublished - 28 Mar 2007
Externally publishedYes

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