Landau parameters

Landau parameters are coefficients that describe how particles, like electrons or neutrons, interact within a many-particle system such as a metal or nuclear matter. They quantify how these particles influence each other's behavior when they are close together, affecting properties like the system's compressibility, magnetic response, and sound propagation. Think of them as feedback factors that determine how the overall material responds to disturbances, allowing scientists to understand and predict the collective behavior of complex quantum systems with many interacting particles.