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arXiv · 0705.1888

Quantum Phases of Ultracold Bosonic Atoms in a Two-Dimensional Optical Superlattice

Jing-Min Hou
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Abstract

We study quantum phases of ultracold bosonic atoms in a two-dimensional optical superlattice. The extended Bose-Hubbard model derived from the system of ultracold bosonic atoms in an optical superlattice is solved numerically with Gutzwiller approach. We find that the modulated superfluid(MS), Mott-insulator (MI) and density-wave(DW) phases appear in some regimes of parameters. The experimental detection of the first order correlations and the second order correlations of different quantum phases with time-of-flight and noise-correlation techniques is proposed.

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Jing-Min Hou. 2008-03-31. Quantum Phases of Ultracold Bosonic Atoms in a Two-Dimensional Optical Superlattice. https://arxiv.org/abs/0705.1888

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