Breakdown of the superfluidity of a matter wave in a random environment
arXiv:1003.5808 · doi:10.1103/PhysRevA.82.011602
Abstract
We consider a guided Bose-Einstein matter wave flowing through a disordered potential. We determine the critical velocity at which superfluidity is broken and compute its statistical properties. They are shown to be connected to extreme values of the random potential. Experimental implementations of this physics are discussed.
4 pages, 2 figures, final printed version