Localization of a Bose Einstein condensate in an optical superlattice

E. A. Sorokina, Andrei I. Maimistov, S. O. Elyutin

罗小兵, 夏秀文, 张晓斐

Jun Xu, 罗小兵

Chang Cang Huang

Russell Campbell

Bhattacherjee, Aranya, Pietrzyk, Monika

The Bloch and dipole oscillations of a Bose Einstein condensate (BEC) in an optical superlattice is investigated. We show that the effective mass increases in an optical superlattice, which leads to localization of the BEC, in accordance with recent experimental observations [17]. In addition, we find that the secondary optical lattice is a useful additional tool to manipulate the dynamics of the atoms.