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Strongly interacting Luttinger liquid and superconductivity in an exactly solvable model

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Karnaukhov, I., & Ovchinnikov, A. (2002). Strongly interacting Luttinger liquid and superconductivity in an exactly solvable model. PHYSICAL REVIEW B, 66(10): 104518. doi:10.1103/PhysRevB.66.104518.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002C-5B29-2
Abstract
A 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 strongly interacting Luttinger liquid can be realized in superconducting state at a high electron density and high value of repulsive on-site Coulomb interaction.