Main Question or Discussion Point
How is superfluidity studied in a BEC?
Yes, experiment pleaseOriginally posted by heumpje
First of all: a superfluid IS a BEC. But how do you mean the question? Do you want to know how to perform an experiment that shows wether or not you have a superfluid.
Actually, superfluidity and Bose-Einstein condensation are not the same thing. To have superfluidity, you need an energy gap that prevents the creation of low energy excitations. An ideal BEC, where the particles do not interact, is not a superfluid because a lot of the energy levels are degenerate.First of all: a superfluid IS a BEC