Absence of metal–insulator transition in Hubbard’s model for a hypercubic lattice
A. L. AlistratovPhysicotechnical Institute, Ukrainian Academy of Sciences, DonetskYu. A. DimashkoPhysicotechnical Institute, Ukrainian Academy of Sciences, DonetskV. S. Podol’skiiPhysicotechnical Institute, Ukrainian Academy of Sciences, Donetsk
ABI
Аннотация
Hubbard’s model with local repulsion and half-filled band is considered for a hypercubic lattice. It is shown that there is no metal–insulator transition in this model and its ground state is an antiferromagnetic insulator for any finite interaction.
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