Cesium atoms shaken, not stirred, to create elusive excitation in superfluid
Thursday, February 5, 2015 - 14:30
in Physics & Chemistry
In 1941, future Nobel laureate Lev Landau predicted that superfluid helium-4 should contain an exotic, particle-like excitation called a roton. Roton structure has been a matter of debate ever since. Physicists have now created roton structure in the laboratory.