Berlin 2008 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 15: Controlling Dirty Bosons: Disorder Effects on BECs

DY 15.4: Talk

Tuesday, February 26, 2008, 15:15–15:30, MA 001

Disorder physics in atomic mixtures — •Oleksandr Fialko and Klaus Ziegler — Universität Augsburg

Mixtures of different atomic species represent complex quantum systems with competing degrees of freedom. They can be created either by filling two types atoms in an optical lattice [1,2] or by allowing an atomic cloud to form molecules due to attractive interatomic interaction [3,4]. The competing degrees of freedom can lead to competing quantum phases, phase transitions, phase separation, and correlation induced disorder. We discuss various systems with elastic and inelastic scattering, quantum phases, and the possibility of Anderson localization.

[1] C. Ates and K. Ziegler, Phys. Rev. A 71, 063610 (2005)

[2] K. Ziegler, Nucl. Phys. A 790, 718c (2007)

[3] K. Ziegler, Laser Physics 15, 650 (2005)

[4] O. Fialko, Ch. Moseley and K. Ziegler, Phys. Rev. A 75, 053616 (2007)