Rocky Mudbutt (22622)
writes "Physorg.com reports that graduate students at Rice University have created a Rydberg atom with a comma shaped wave function that mimics the Trojan asteroids associated with Jupiter. Using a linearly polarized sinusoidal electric field whose period slowly increased, the electron wave function was coerced into an orbit approximately the size of a period. Measuring this has shown that Bohr's prediction is correct, the classical and quantum descriptions of the orbiting electron wave packets match.
For the paper see Creating and Transporting Trojan Wave Packets."