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

We present a two-band Bose-Hubbard model 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.

preprint2016arXivOpen access
C. A. Parra-MurilloJ. MadroneroS. Wimberger
cond-mat.quant-gas
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Open access3 authors1 topic
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C. A. Parra-MurilloJ. MadroneroS. Wimberger

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