Oil and Water Dep’t

Do not adjust your picture. This is an example of the snake-like pattern formed when a dipolar Bose-Einstein condensate (blue) separates itself from a non-dipoalr BEC (black). The way in which this separation happens revelas the "hidden structure" inside the gas.

 It is widely known that mixtures of Bose-Einstein condensates (BEC's) can "phase separate" under circumstances where the mutual repulsion of the two BEC's overcomes their self-repulsion. Typically, one BEC goes to one side of the enclosure, and the other goes to the other side. Now, along with Chris Ticknor and Eddy Timmermans, Ryan Wilson has expanded this notion to include dipolar BEC's that possess a roton instability. In this case the separation produces fine patterns like the one shown below.