VeranstaltungenDetails

Vortragende Person/Vortragende Personen:
Dr. Georgy Astakhov, Julius-Maximilians-Universität Würzburg

In the first part of my talk, I concentrate on one of the most sought-after phenomena in topological quantum matter, the so-called topological magnetoelectric effect. We observe that due to additional terms in Maxwell’s equations, describing axion electrodynamics of the surface states, the THz Faraday rotation is quantized in multiples of the fine structure constant.
In the second part of my talk, I concentrate on optically-addressable spin centers in wide-bandgap semiconductors with extremely long spin coherence time. Single atom-scale centers can be generated on demand in a point-and-shoot fashion, allowing realization of hybrid quantum systems, where defect spins are coupled to photonic/vibrational modes of a resonator or integrated into electronic circuits for on-chip manipulation.