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Tunneling Dynamics of Dipolar Bosonic System with Periodically Modulated s-wave Scattering

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2014 Chinese Physical Society and IOP Publishing Ltd
, , Citation Yu Zi-Fa and Xue Ju-Kui 2014 Commun. Theor. Phys. 61 565 DOI 10.1088/0253-6102/61/5/04

0253-6102/61/5/565

Abstract

Within the mean-field three-site Bose—Hubbard model, the tunneling dynamics of dipolar bosonic gas with a periodically modulation of s-wave scattering is investigated. The system experiences complex and rich coherent tunneling (CT)-coherent destruction of tunneling (CDT) transitions resulting from the correlated effect among the next-neighbor dipole-dipole interaction, the on-site interaction and the modulated s-wave scattering. In particular, The region of the modulated s-wave scattering for generating CT (CDT) is the widest (narrowest) when the on-site interaction and the next-neighbor dipole-dipole interaction have some correlated values, which are closely related to the tunneling energy and the interaction energy of the system. The correlated values for appearing CDT can be theoretically gained from the tunneling energy and the interaction energy of the system.

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10.1088/0253-6102/61/5/04