Analysis of localization phenomena in weakly interacting disordered lattice gases

T. Schulte; S. Drenkelforth; J. Kruse; K. Sacha; J. Zakrzewski; M. Lewenstein; J. J. Arlt; W. Ertmer

doi:10.1117/12.704003

9 February 2007 Analysis of localization phenomena in weakly interacting disordered lattice gases

T. Schulte, S. Drenkelforth, J. Kruse, K. Sacha, J. Zakrzewski, M. Lewenstein, J. J. Arlt, W. Ertmer

Proceedings Volume 6483, Complex Light and Optical Forces; 648308 (2007) https://doi.org/10.1117/12.704003
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

Although disorder plays a crucial role in many systems, it can usually not be chosen or controlled. We show that the unique methods available for ultracold atomic gases may be used for the controllable production and observation of disordered quantum systems. 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 analyzed by investigating the superfluid fraction and the localization length within the system.

Citation Download Citation

T. Schulte, S. Drenkelforth, J. Kruse, K. Sacha, J. Zakrzewski, M. Lewenstein, J. J. Arlt, and W. Ertmer "Analysis of localization phenomena in weakly interacting disordered lattice gases", Proc. SPIE 6483, Complex Light and Optical Forces, 648308 (9 February 2007); https://doi.org/10.1117/12.704003

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