Breakdown of the superfluidity of a matter wave in a random environment

Details Breakdown of the superfluidity of a matter wave in a random environment Breakdown of the superfluidity of a matter wave in a random environment

2010-03-30

arxiv.org/abs/1003.5808v2

Phys. Rev. A 82, 011602(R) (2010)

Physics

Condensed Matter

Quantum Gases

4 pages, 2 figures, final printed version

Scientific paper

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.

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