Phase Diagrams of the Penson-Kolb-Hubbard Model with Repulsive Pair-Hopping Interaction
نویسندگان
چکیده
منابع مشابه
Ground-state instabilities in the one-dimensional Penson-Kolb-Hubbard model.
Different kinds of instabilities (CDW , SDW , SS) in the 1D Hubbard model with pair-hopping interaction are investigated using an approximate Bethe-Salpeter equation. The study is performed at any density of electrons and for arbitrary values of the model parameters. In the absence of the on-site interaction, no transition occurs at half filling for any finite negative pair-hopping parameter, i...
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ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 2016
ISSN: 0587-4246,1898-794X
DOI: 10.12693/aphyspola.130.613