TY - JOUR
T1 - Spatial dispersive shock waves generated in supersonic flow of Bose-Einstein condensate past slender body
AU - El, G. A.
AU - Kamchatnov, A. M.
PY - 2006/2/6
Y1 - 2006/2/6
N2 - 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.
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.
UR - http://www.scopus.com/inward/record.url?scp=30944465661&partnerID=8YFLogxK
U2 - 10.1016/j.physleta.2005.08.099
DO - 10.1016/j.physleta.2005.08.099
M3 - Article
AN - SCOPUS:30944465661
SN - 0375-9601
VL - 350
SP - 192
EP - 196
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 3-4
ER -