Anderson localization is a phenomenon in condensed matter physics and solid-state physics that occurs in disordered systems. It is named after physicist Philip W. Anderson, who first proposed the concept in 1958.
Anderson localization occurs when a wave, such as an electromagnetic wave or an acoustic wave, is scattered randomly by impurities or disorder in a material. The scattered waves interfere with each other, leading to a reduction in the wave’s amplitude and limiting its propagation. This results in the localization of the wave to a small region in space, rather than it spreading out and diffusing over a large area.
Anderson localization has important implications for the transport of heat and electricity in disordered materials, and it has been observed in a variety of systems, including electronic systems, optical systems, and acoustic systems.
In electronic systems, Anderson localization can result in the formation of localized electronic states, which can be used for applications such as data storage, quantum computing, School Management System and energy harvesting. In optical systems, Anderson localization can result in the formation of photonic bandgaps, which are regions where light is forbidden to propagate, and has important implications for optical communication and sensing.