Quantum copycat: Researchers find a new way in which bosons behave like fermions
(PHYSorg.com Physics)

Bosons and fermions, the two classes into which all particles-from the sub-atomic to atoms themselves-can be sorted, behave very differently under most circumstances. While identical bosons like to congregate, identical fermions tend to be antisocial. However, in one dimension-imagine particles that can only move on a line-bosons can become as stand-offish as fermions, so that no two occupy the same position. Now, new research shows that the same thing-bosons acting like fermions-can happen with their velocities. The finding adds to our fundamental understanding of quantum systems and could inform the eventual development of quantum devices.