Michael Hilke
Strong disorder in correlated potentials such as speckles and topological systems and their relevance to experiments
hilke@physics.mcgill.ca
Department of Physics, McGill University, Montreal, Canada H3A 2T8
Adding disorder to a system of quantum particles or excitations can lead to dramatic changes of their properties, including Anderson localization. While there are effective approximations to describe consequences of disorder, such as the Born approximation, they generally fail at large disorder. Here will we review an approach based on a non-linear approximation, which can be applied to arbitrary correlated potentials and which is also effective at high disorder strengths. This formalism leads to interesting results in experimental systems, such as speckle potentials, disordered quantum wires and vibrational topological states in graphene, which will be discuss in this talk.