Engineering many-body quantum dynamics by disorder
Year: 2008
Authors: Buonsante P., Wimberger S.
Autors Affiliation: CNISM – Dipartimento di Fisica, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 19, 69120 Heidelberg, Germany
Abstract: Going beyond the currently investigated regimes in experiments on quantum transport of ultracold atoms in disordered potentials, we predict a crossover between regular and quantum-chaotic dynamics when varying the strength of disorder. Our spectral approach is based on the Bose-Hubbard model describing interacting atoms in deep random potentials. The predicted crossover from localized to diffusive dynamics depends on the simultaneous presence of interactions and disorder and can be verified in the laboratory by monitoring the evolution of typical experimental initial states.
Journal/Review: PHYSICAL REVIEW A
Volume: 77 (4) Pages from: 041606 to: 041606
More Information: Rapid CommunicationKeyWords: Transport; bosons; lattice; quantum; disorderDOI: 10.1103/PhysRevA.77.041606ImpactFactor: 2.908Citations: 10data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-10References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here