Disordered Bose-Einstein Condensates in Quasi-One-Dimensional Magnetic Microtraps
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CitationWang, Daw-Wei, Mikhail D. Lukin, and Eugene Demler. 2004. “Disordered Bose-Einstein Condensates in Quasi-One-Dimensional Magnetic Microtraps.” Physical Review Letters 92 (7) (February 18). doi:10.1103/physrevlett.92.076802.
AbstractWe analyze the effects of a random magnetic potential in a microfabricated waveguide for ultracold atoms. We find that the shape and position fluctuations of a current carrying wire induce a strong Gaussian correlated random potential with a length scale set by the atom-wire separation. The theory is used to explain quantitatively the observed fragmentation of the Bose-Einstein condensates in atomic waveguides. Furthermore, we show that nonlinear dynamics can be used to provide important insights into the nature of the strongly fragmented condensates. We argue that a quantum phase transition from the superfluid to the insulating Bose glass phase may be reached and detected under the realistic experimental conditions.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:27899433
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