Charge migration refers to the movement of electrical charge, such as electrons or ions, in a material or system. This phenomenon is commonly studied in the field of physical chemistry, where researchers investigate how charges move through molecules, molecular clusters, or other materials. Understanding charge migration is important for a variety of applications, such as in photovoltaic devices, electronic materials, and biological systems. Researchers often use theoretical models, computational simulations, and experimental techniques to study the mechanisms and dynamics of charge migration processes.