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Superconductivity in Correlated Fermions System

Authors
Publisher
Nigerian Association of Mathematical Physics
Publication Date
Disciplines
  • Physics

Abstract

We have studied the Hubbard model which is a model that is used to describe the physics of strongly correlated Fermions systems. Using the Hubbard model, we worked on some systems in one dimension (1-D) at half fillings. We employed the numerical exact diagonalization technique and found out that there was a transition from metallic state to a superconducting state as we move from the positive value of the On-site interaction strength to the negative value of the On-site interaction strength U.Keywords: Hubbard model, exact diagonalization, superconducting state and interaction strengthJournal of the Nigerian Association of Mathematical Physics, Volume 19 (November, 2011), pp 571 – 574

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