Motional dressed states in a Bose condensate: Superfluidity at supersonic speed
classification
❄️ cond-mat.soft
keywords
fieldobstaclespeedsupersonicanalyticaroundbosecondensate
read the original abstract
We present an exact analytic solution of a nonlinear Schr\"odinger field interacting with a moving potential (obstacle) at supersonic speed. We show that the field forms a stable shape-invariant structure localized around the obstacle --- a dressing effect that protects the field against excitations by the obstacle.
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