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 | |
Publication status | Published - 6 Feb 2006 |
Externally published | Yes |