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Regensburg 2010 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 11: Quantum Dynamics, Decoherence, and Quantum Information II

DY 11.8: Talk

Tuesday, March 23, 2010, 16:00–16:15, H38

Anderson Localization of SolitonsKrzysztof Sacha1,2, •Cord A. Müller2,3, Dominique Delande2, and Jakub Zakrzewski1,21Uniwersytet Jagielloński, Kraków, Poland — 2Laboratoire Kastler-Brossel, UPMC, ENS, CNRS, 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] Phys. Rev. Lett. 103, 210402 (2009)

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