Anderson Localization

From the start of their studies students in condensed matter physics are exposed to ordered systems. These systems can be very simple and give insight into the physics of many materials. However it seems that much of what is learned in ordered systems cannot be brought to disordered systems. Instead new conceptual understandings much be reached will very different consquences. One of these is the absence of movement of charge carriers in strongly disordered systems. The reason for this has been coined Anderson Localization. In this paper ordered systems will be breifly reviewed moving on to a conceptual picture of localization. Then region between perfect order and strong disorder will be investegated using scaling theory. Then we will look into connecting these two regimes using scaling theory.