Monday, April 19, 2010

Delocalization of a disordered bosonic system by repulsive interactions

B. Deissler, M. Zaccanti, G. Roati, C. D?Errico, M. Fattori, M. Modugno, G. Modugno & M. Inguscio

In bosonic many-body systems, disorder tends to localize particles, whereas weak
repulsive interactions between the particles have a delocalizing effect. The crossover
between these regimes has now been studied experimentally, using an optical lattice to
control disorder and interactions independently.

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