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Название: Many-Polaron States in the Holstein–Hubbard Model
Авторы: Proville L., Aubry S.
Аннотация:
A variational approach is proposed to study some properties of the adiabatic Holstein–Hubbard model which describes an assembly of fermionic charges interacting with a static atomic lattice. The sum of the electronic energy and the lattice elastic energy is proved to have minima with a many-polaron structure in a certain domain of model parameters.