Mean-field approaches to the Bose-Hubbard model with three-body local interaction
classification
❄️ cond-mat.quant-gas
keywords
resultsmean-fieldapproachesbose-hubbardlevelmodelthree-bodyanalytical
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The zero temperature properties of the generalized Bose-Hubbard model including three-body interactions are studied on a mean-field level. We obtain analytical results using the so-called perturbative mean-field method and more detailed numerical results using the Gutzwiller product state variational Ansatz. These two approaches yield equivalent results which compare well on a qualitative level with recent exact results obtained in the literature.
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