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.

Engineering many-body quantum dynamics by disorder / Buonsante, P.; Wimberger, Sandro Marcel. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 77:4(2008), p. 041606. [10.1103/PhysRevA.77.041606]

Engineering many-body quantum dynamics by disorder

WIMBERGER, Sandro Marcel
2008-01-01

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.
Engineering many-body quantum dynamics by disorder / Buonsante, P.; Wimberger, Sandro Marcel. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 77:4(2008), p. 041606. [10.1103/PhysRevA.77.041606]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2743501
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