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Coloquio virtual ICF | Dr. Thomas Gorin
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Título: "Quantum transport in a combined kicked rotor and quantum walk system"
Ponente: Dr. Thomas Gorin - Universidad de Guadalajara
Resumen:
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.
Videoconferencia transmitida en vivo el miércoles 25 de Noviembre del 2020, a través de Zoom.
Ponente: Dr. Thomas Gorin - Universidad de Guadalajara
Resumen:
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.
Videoconferencia transmitida en vivo el miércoles 25 de Noviembre del 2020, a través de Zoom.