Calendar

Posted October 3, 2026
Last modified October 6, 2026

Colloquium Questions or comments?

Wilhelm Schlag, Yale University
Many questions, few answers; the mathematics community in the AI age

The speaker will share some data on the current mathematical landscape that is changing rapidly. Over the past two months we have witnessed enormous advances both in the power of LLMs, a steep increase in the number of submissions to arxiv, as well as to many journals. Editorial boards are searching for strategies to cope with these challenges. The talk will present some of the thoughts that have come up in this process. You will be asked to participate by sharing your ideas and concerns.

Event contact: Rui Han

Posted October 21, 2026

Colloquium Questions or comments?

Gunter Stolz, University of Alabama at Birmingham
Speed Limits for Quantum Walks in Electric Fields

Quantum walks can be motivated in at least two different ways. For one, they are the one-particle sector restrictions of quantum cellular automata (QCAs), a model used in quantum computing. Also, quantum walks are a quantum mechanical analog of classical random walks. However, while the latter have diffusive dynamics, quantum walks typically spread ballistically, i.e. they have positive velocity. We will discuss two ways to mathematically describe their propagation velocity. In particular, we will show that an exterior periodic electric field can slow down the velocity exponentially in the period of the field. This means that the field localizes the walk for long times, which thus behaves as an insulator. This is joint work with Houssam Abdul-Rahman (Arabic Emirates), Christopher Cedzich (Hagen, Germany) and Albert Werner (Copenhagen).

Posted September 10, 2026

Colloquium Questions or comments?

Maria Chudnovsky, Princeton University MacArthur Foundation Fellowship recipient 2012.
TBA