Engineering many-body quantum dynamics by disorder
Anno: 2008
Autori: Buonsante P., Wimberger S.
Affiliazione autori: 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.
Giornale/Rivista: PHYSICAL REVIEW A
Volume: 77 (4) Da Pagina: 041606 A: 041606
Maggiori informazioni: Rapid CommunicationParole chiavi: Transport; bosons; lattice; quantum; disorderDOI: 10.1103/PhysRevA.77.041606Citazioni: 10dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-12Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui