

For example, a naive quantum mechanical calculation of the ground-state energy density yields infinity, which is unreasonable. This interaction complicates the theoretical treatment of the fluid. In a fluid composed of electrically charged constituent particles, each pair of particles interact through the Coulomb force. It is an important part of the behavior of charge-carrying fluids, such as ionized gases (classical plasmas) and conduction electrons in semiconductors and metals. Screening is the damping of electric fields caused by the presence of mobile charge carriers.
