We present a theoretical and numerical study of the competition between two opposite interference effects, namely interference-induced ballistic transport on one hand, and strong (Anderson) localization on the other. As a model system, we consider the quantum kicked rotor, where strong localization is observed in the discrete momentum coordinate. In this model, we introduce the ballistic transport in the form of a Hadamard and other types of quantum walk. We then study classical and quantum diffusion in the momentum coordinate, and compare to theoretical predictions obtained by generalizing a simple argument from the kicked rotor model to the new situation.
Transmisión en vivo de la videoconferencia vía YouTube: bit.ly/YouTube_ICF
Participante: Dr. Thomas Gorin
Institución: Universidad de Guadalajara
Fecha y hora: Este evento terminó el Miércoles, 25 de Noviembre de 2020