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Showing 1 to 1 of 1 for “"Hubbard rings"”.
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Exact and variational investigations of Hubbard rings
We study the one-dimensional Hubbard model for interacting electrons in a crystal lattice, using two methods: solution of the Lieb-Wu equations in the atomic limit of no intersite hopping, and variational techniques to obtain a lower bound for the ground state energy. From the Lieb-Wu equations we …