Controlling the group velocity of colliding atomic Bose-Einstein condensates with Feshbach resonances
Controlling the group velocity of colliding atomic Bose-Einstein condensates with Feshbach resonances
We report on a proposal to reduce the group velocity of a small ``laser'' Bose-Einstein condensate upon passing through a larger ``medium'' condensate of the same isotopic species in analogy to slowing of light passing through dispersive media. We make use of ultracold collisions near a magnetic Feshbach resonance, which …