Movies accompanying the paper:

Non-Equilibrium Dynamics and Superfluid Ring Excitations in Binary Bose-Einstein Condensates.
K.M. Mertes, J. Merrill, R. Carretero-González, D.J. Frantzeskakis, P.G. Kevrekidis, and D.S. Hall.
Phys. Rev. Lett. 99 (2007) 190402. PDF.
Main movies: [ cuts @ 60% and 30% for |1> and |2 > ], [ cuts @ 50% and 55% for |1> and |2 > ]

Snapshots of two microscopic interacting drops of quantum matter in a Bose-Einstein condensate. The two atomic species repel each other and thus tunnel through each other periodically approximately every 85 milliseconds. Plots generated by a computer simulation involving two nonlinear Schrödinger equations in a three-dimensional geometry that closely match the real laboratory experiments.

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