Regensburg 2022 – scientific programme

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SYQM: Complexity and Topology in Quantum Matter

SYQM 1: Complexity and Topology in Quantum Matter

Friday, September 9, 2022, 09:30–12:15, H1

Over the past two decades the mathematical concept of topology has emerged into a powerful tool for understanding and classifying quantum matter. The existence of global invariants in a physical system not only gives rise to novel types of quantum phases beyond Landau’s concept of broken symmetries and local order parameters, but may also lead to “topological protection” of otherwise rather delicate quantum states with respect to external perturbations, with obvious application potential for future quantum technologies. Topological physics is, in fact, ubiquitous. This symposium is dedicated to giving an overview of its unifying relevance in widely differing areas of condensed matter physics, ranging from electronic band structures to quantum magnetism to photonics devices. The talks will also cover the impact of topology in out-of-equilibrium systems.

	09:30	SYQM 1.1	Invited Talk: The role of crystalline symmetries in topological materials: the topological materials database — •Maia Vergniory
	10:00	SYQM 1.2	Invited Talk: Microwave Bulk and Edge Transport in HgTe-Based 2D Topological Insulators — •Erwann Bocquillon, Matthieu C. Dartiailh, Alexandre Gourmelon, Hiroshi Kamata, Kalle Bendias, Simon Hartinger, Jean-Marc Berroir, Gwendal Fève, Bernard Plaçais, Lukas Lunczer, Raimund Schlereth, Hartmut Buhmann, and Laurens Molenkamp
	10:30	SYQM 1.3	Invited Talk: Spectral Sensitivity of Non-Hermitian Topological Systems — •Jan Carl Budich
	11:00		15 min. break
	11:15	SYQM 1.4	Invited Talk: Topological photonics and topological lasers with coupled vertical resonators — •Sebastian Klembt
	11:45	SYQM 1.5	Invited Talk: Spectroscopic Studies of the Topological Magnon Band Structure in a Skyrmion Lattice — •Markus Garst