Hubbard Model

The Hubbard Model is a simplified way to understand how electrons move and interact in materials, especially those that can conduct electricity or become insulators. It considers two main factors: electrons hopping between neighboring atoms and the repulsive force when two electrons occupy the same atom. This balance influences whether a material conducts electricity or not and helps explain complex behaviors like magnetism and high-temperature superconductivity. Although simplified, the Hubbard Model provides valuable insights into the fundamental properties of many advanced materials.