SKM 2023 – wissenschaftliches Programm

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SYQC: Symposium Topology in Quantum and Classical Physics – From Topological Insulators to Active Matter

SYQC 1: Topology in Quantum and Classical Physics – From Topological Insulators to Active Matter

SYQC 1.1: Hauptvortrag

Mittwoch, 29. März 2023, 15:00–15:30, HSZ 01

Topological magnetic whirls for computing — •Karin Everschor-Sitte — Faculty of Physics and Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, 47057 Duisburg, Germany

Novel computational paradigms in combination with suitable hardware solutions are required to overcome the limitations of our state-of-the-art computer technology. In this talk, I focus on the potential of magnetic whirls -- so-called skyrmions -- for computing.

Skyrmions are topologically stable whirls that occur in various areas of physics and were discovered by Tony Skyrme in the 1960s in particle physics. Skyrmions occurring in magnetic systems were first observed experimentally in 2009. Within a decade, the field of magnetic skyrmions has become a very active area of research, with the aim of exploiting the topological properties of the magnetic whirl-like particles for spintronics applications. For example, the peculiar twist of the magnetization in skyrmions leads to a very efficient coupling to electric currents and allows for "banana kicks" analogous to those in soccer. More recently, magnetic skyrmions have become the focus of unconventional computing schemes such as reservoir computing.