Analysis of localization phenomena in weakly interacting disordered lattice gases

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Schulte, T.; Drenkelforth, S.; Kruse, J.; Tiemeyer, R.; Sacha, K. et al.: Analysis of localization phenomena in weakly interacting disordered lattice gases. In: New Journal of Physics 8 (2006), 230. DOI: https://doi.org/10.1088/1367-2630/8/10/230

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Abstract: 
Disorder plays a crucial role in many systems particularly in solid state physics. However, the disorder in a particular system cannot usually be chosen or controlled. We show that the unique control available for ultracold atomic gases may be used for the production and observation of disordered quantum degenerate gases. A detailed analysis of localization effects for two possible realizations of a disordered potential is presented. In a theoretical analysis, clear localization effects are observed when a superlattice is used to provide a quasiperiodic disorder. The effects of localization are analysed by investigating the superfluid fraction and the localization length within the system. The theoretical analysis in this paper paves a clear path for the future observation of Anderson- like localization in disordered quantum gases.
License of this version: CC BY-NC-SA 3.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2006
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 65 67.71%
2 image of flag of United States United States 10 10.42%
3 image of flag of China China 9 9.38%
4 image of flag of Vietnam Vietnam 2 2.08%
5 image of flag of Sweden Sweden 2 2.08%
6 image of flag of India India 2 2.08%
7 image of flag of Taiwan Taiwan 1 1.04%
8 image of flag of Japan Japan 1 1.04%
9 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 1 1.04%
10 image of flag of Czech Republic Czech Republic 1 1.04%
    other countries 2 2.08%

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