Ai
Created page with "== Introduction == A Quasiparticle is a disturbance, in a medium, that behaves as a particle. This concept is used in several fields of science, including solid-state physics, condensed matter physics, and particle physics. Quasiparticles are particularly important in the study of systems that are not easily described in terms of elementary particles—systems such as superfluids and solids. In these systems, the interactions between the many constituents can make i..."