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Hannover 2010 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 3: Quantum Gases: Bosons I

Q 3.2: Vortrag

Montag, 8. März 2010, 14:15–14:30, E 001

Anderson Localization of SolitonsKrzysztof Sacha1,2, •Cord A. Müller2,3, Dominique Delande2, and Jakub Zakrzewski11Uniwersytet Jagielloński, Kraków, Poland — 2Laboratoire Kastler-Brossel, Paris, France — 3Physikalisches Institut, Universität Bayreuth, Germany

At low temperature, a quasi-one-dimensional ensemble of atoms with an attractive interaction forms a bright soliton. When exposed to a weak and smooth external potential, the shape of the soliton is hardly modified, but its center-of-mass motion is affected. We show that in a spatially correlated disordered potential, the quantum motion of a bright soliton displays Anderson localization. The localization length can be much larger than the soliton size and could be observed experimentally.

[1] K. Sacha et al., PRL 103, 210402 (2009)

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