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Einladung zum Vortrag (Zoom) von Herrn Dr. Christoph Fischbacher (Baylor University, Waco, Texas) am 09.07.2024 - 14:30 Uhr im Rahmen des Mathematischen Kolloquiums
[09.07.2024]Im Rahmen des Mathematischen Kolloquiums hält am Dienstag, den 9. Juli 2024, um 14:30 Uhr, Herr Dr. Christoph Fischbacher (Baylor University, Waco, Texas) einen Vortrag zum Thema
Slow propagation velocities of discrete Schrödinger operators in large periodic potential
Abstract: I will present some of my recent joint work with Abdul-Rahman, Darras, and Stolz (https://arxiv.org/abs/2401.11508). I will begin with a quick review on discrete Schrödinger (Jacobi) operators with periodic potential and on Lieb-Robinson bounds. While periodic Schrödinger operators have purely ac spectrum and exhibit ballistic transport, I will show that if the potential is large enough, it is possible to make the velocity of this transport arbitrarily small. I will discuss the special case of period 2, where things can be computed explicitly and then talk about the case of general period p.
Der Vortrag findet im Rahmen eines Zoom-Meetings statt. Bei Interesse an den Zugangsdaten bitte bei Herrn Dr. Hofmann (matthias.hofmann) melden.
