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