We model the superfluid to Mott insulator transition for a Bose gas on a lattice with two inequivalent sublattices. Using the Gutzwiller ansatz, we produce phase diagrams and provide an understanding of the interplay between superfluidity on each sublattice. We explore how the Mott lobes split and describe the experimental signatures.

中文翻译：

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亚晶格偏置对超流体到莫特绝缘体转变的影响

我们在具有两个不等价子晶格的晶格上模拟 Bose 气体的超流体到莫特绝缘体的转变。使用 Gutzwiller ansatz，我们生成相图并提供对每个亚晶格上超流之间相互作用的理解。我们探索莫特瓣如何分裂并描述实验特征。