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 |
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| 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 |