A two-band Bose-Hubbard model is presented which is shown to be minimal in the necessary coupling terms at resonant tunneling conditions. The dynamics of the many-body problem is studied by sweeping the system across an avoided level crossing. The linear sweep generalizes Landau-Zener transitions from single-particle to many-body realizations. The temporal evolution of single-and two-body observables along the sweeps is investigated in order to characterize the non-equilibrium dynamics in our complex quantum system.

Chaotic level mixing in a two-band Bose-Hubbard model / Parra-Murillo, Carlos A; Madroñero, Javier; Wimberger, Sandro. - In: ANNALEN DER PHYSIK. - ISSN 0003-3804. - 527:9-10(2015), pp. 656-662. [10.1002/andp.201400200]

Chaotic level mixing in a two-band Bose-Hubbard model

WIMBERGER, Sandro Marcel
2015

Abstract

A two-band Bose-Hubbard model is presented which is shown to be minimal in the necessary coupling terms at resonant tunneling conditions. The dynamics of the many-body problem is studied by sweeping the system across an avoided level crossing. The linear sweep generalizes Landau-Zener transitions from single-particle to many-body realizations. The temporal evolution of single-and two-body observables along the sweeps is investigated in order to characterize the non-equilibrium dynamics in our complex quantum system.
Chaotic level mixing in a two-band Bose-Hubbard model / Parra-Murillo, Carlos A; Madroñero, Javier; Wimberger, Sandro. - In: ANNALEN DER PHYSIK. - ISSN 0003-3804. - 527:9-10(2015), pp. 656-662. [10.1002/andp.201400200]
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2796875
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