Strongly Interacting Luttinger Liquid and Superconductivity in an Exactly Solvable Model

Details Strongly Interacting Luttinger Liquid and Superconductivity in an Exactly Solvable Model Strongly Interacting Luttinger Liquid and Superconductivity in an Exactly Solvable Model

2002-05-08

arxiv.org/abs/cond-mat/0205147v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 2 figures, RevTex

Scientific paper

10.1103/PhysRevB.66.104518

A new family of exactly solvable one dimensional models with a hard-core repulsive potential is solved by the Bethe Ansatz for an arbitrary hard-core radius. The exact ground state phase diagrams in a plane 'electron density - on-site interaction' have been studied for several values of a hard-core radius. It is shown that superconducting phase and strongly interacting Luttinger liquid state are coexisted at a high electron density and unusually high value of repulsive on-site Coulomb interaction.

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