Rotating Bose-Einstein Condensate

Superfluids are distinguished from normal fluids by their peculiar response to rotation: circulating flow in superfluid helium, a strongly coupled Bose liquid, can appear only as quantized vortices. The newly created Bose-Einstein condensates - clouds of millions of ultracold, weakly interacting alkali-metal atoms that occupy a single quantum state - offer the possibility of investigating superfluidity in the weak-coupling regime. An outstanding question is whether Bose-Einstein condensates exhibit a mesosc